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单词拼写：
jam
音标发音：
[dʒæm][dʒæm]
速记技巧：
词源词根法
拆：
词源不详，可能来自cram变体，塞进，强塞，引申词义堵塞，塞车。果酱义可能来自同一词源，即把水果压碎制成果酱。
记：
“He got stuck in the jam.”（他陷入了交通堵塞中。）“She likes to make jam from fresh fruit.”（她喜欢用新鲜水果制作果酱。）
英英释义：
Noun:
1.preserve of crushed fruit2.informal terms for a difficult situation; "he got into a terrible fix" "he made a muddle of his marriage"3.a dense crowd of people4.deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
短语词组：
the traffic jam交通阻塞
the jam jar果酱罐
be in〔get into〕 a jam陷入困境
get out of this jam摆脱困境
jam the enemy stations干扰敌人的电台
jam hands夹手
jam stores挤进商店
jam street挤上街道
jam in(将…)挤进〔塞进〕
jam on猛压,猛踩
jam clothes into a suitcase把衣服塞进箱子
jam into a bus挤进公共汽车
jam into a lift挤进一间电梯
jam with使…挤满
同义词辨析：
block choke clog dam jam【导航词义：挡住】
blockv.堵塞，阻挡
〔辨析〕
指堵住通道，使人或物无法通过，语气较强。
〔例证〕
A big stone is blocking the road.
一块大石头挡在路上。
Something blocked the flow of water through the pipe.
有什么东西堵塞了管道里的水流。
chokev.堵塞；（使）窒息
〔辨析〕
指将某处塞满东西造成堵塞；也可以指使人呼吸困难。
〔例证〕
A pile of garbage choked the pipe.
一大坨垃圾堵塞了管道。
The gutter was choked with debris.
排水道被垃圾堵住了。
That pungent perfume almost choked me.
那刺鼻的香味差点儿让我喘不过气来。
They choked on the smoke from the chimney.
他们被烟囱冒出的烟呛得透不过气来。
clogv.塞满，阻塞
〔辨析〕
指堵塞道路、孔洞等。
〔例证〕
Every summer, there are cars clogging the road to the beautiful beach.
每年夏天都会有汽车把那条通往迷人海滩的道路堵得水泄不通。
The water pipe was clogged with debris.
水管子被废弃物堵了。
damv.阻止，抑制，筑坝拦水
〔辨析〕
主要指阻挡住涌流物，如河水、眼泪等，常与副词 up，back 连用。
〔例证〕
dam (up) the river
在河上建坝
It is ridiculous for him to try to dam the flow of history.
他试图阻挡历史进程的做法是荒谬的。
That poor girl dammed back her tears.
那个可怜的女孩强忍住眼泪。
jamv.（使）挤满
〔辨析〕
指因人、车辆等过多而使某处无法通行。
〔例证〕
The strikers jammed the streets so no car could move.
罢工者把街道堵死了，没有汽车可以通行。
Children jammed the entrance to the fair.
孩子们把游乐场的入口处挤得水泄不通。
双语例句：
1.Louis: Seems like you got yourself in a jam, huh? I wish there was something I could do to help you out.
路易斯：看起来你自己好像有麻烦了，哈？我希望能帮你点忙。
2.Then the mouse came out of her jam pot, and Benjamin took the paper bag off his head, and they told the doleful tale .
然后那鼠从她的果酱罐出了来，接著本杰明从头上取下了纸袋，之后他们说出了那个令人伤心的故事。
3.There are great dangers in trying to dish this sort of dose up with jam for the patient.
如果要想把这种药物加上果酱一齐给病人吃，那是非常危险的。
4.The reason why she was late for the exam was that she got stuck in a traffic jam.
她考试迟到的原因是遇上了塞车。
5.They asked students to choose between things like a pair of CDs or two flavors of jam.
他们要求学生在一些物品当中进行选择，例如一对CD或两种口味的果酱。
6.My summer jam is Rihanna's "Umbrella, " and I think it's easy to see why.
我的夏日劲歌就是蕾哈娜的〈小雨伞〉，而且我想理由一目了然。
7.Place a few slices of duck , pieces of scallion and a teaspoon of jam on the pancakes, and roll it up to eat.
在煎饼上放几块烤鸭，几段大葱，一匙酱，把饼卷起即可食用。
8.You and I are like two kids around a mysterious jam-jar. Little by little, we taste the jam, and find how much sweet there contains.
我和你就好像两个小孩子，围着一个神秘的果酱罐，一点一点地尝它，看看里面有多少甜。
9.The traffic jam in this narrow road is usually during the peak hours, and sometimes has to wait for a long time before able to get out.
在繁忙时间该处面对交通堵塞通，有时要等待很长的时间才能通车。
10.Pretty soon, we may even live up to the bragging motto I made up for our posters and Web site: 'Beijing's premier blues and jam band. '
不久之后，我们可能真的能实现我在海报和网站上放出的豪言壮语：“北京一流的蓝调和爵士乐队”。
全部四级六级高考考研例句：
Wireless security providers will often take steps to help combat the threat of jamming attacks.
出自-2016年12月阅读原文
When the system thinks it's being jammed, it'll notify you via -94- push alert ( ' , 推送警报).
出自-2016年12月阅读原文
Then, he's going to need to know the technical details of your system and acquire the specific equipment necessary for jamming your specific setup.
出自-2016年12月阅读原文
The team at Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and claiming that there aren't any documented cases of successful jam attack since the company began offering wireless security sensors in the 1980s.
出自-2016年12月阅读原文
That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? With the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?Jamming concerns are nothing new, and they're not unique to security systems.
出自-2016年12月阅读原文
So, too, would the motion detectors in your home, so the thief will need to continue jamming once he's inside and searching for things to steal.
出自-2016年12月阅读原文
SimpliSafe, winner of our Editor's Choice distinction, utilizes a special system that's capable of separating incidental RF interference from targeted jamming attacks.
出自-2016年12月阅读原文
SimpliSafe was singled out in one recent article on jamming, complete with a video showing the entire system being effectively bypassed with handheld jamming equipment.
出自-2016年12月阅读原文
SimpliSafe provides devices that are able to distinguish incidental radio interference from targeted jamming attacks.
出自-2016年12月阅读原文
Other systems also seem confident on the subject of jamming.
出自-2016年12月阅读原文
Jamming attacks are absolutely possible.
出自-2016年12月阅读原文
It's easier to find and acquire jamming equipment for some frequencies than it is for others.
出自-2016年12月阅读原文
It is possible for burglars to make jamming attacks with the necessary equipment and skill.
出自-2016年12月阅读原文
He'll need to be jamming you at this point, as a broken window or opened door would normally release the alarm.
出自-2016年12月阅读原文
For comparison, let's say you wanted to jam a conversation between two people—all you'd need to do is yell in the listener's ear.
出自-2016年12月阅读原文
But how probable is it that someone will successfully jam their way into your home and steal your stuff?Let's imagine that you live in a small home with a wireless security setup that offers a functional anti-jamming system.
出自-2016年12月阅读原文
As said before, with the right equipment and the right know-how, it's possible to jam any wireless transmission.
出自-2016年12月阅读原文
A burglar has to continuously jam the wireless security device to avoid triggering the alarm, both inside and outside the house.
出自-2016年12月阅读原文
To prevent possible traffic jams in nearby areas.
出自-2013年6月阅读原文
Jane may be caught in a traffic jam.
出自-2011年6月听力原文
But how probable is it that someone will successfully jam their way into your home and steal your stuff?
2016年12月四级真题（第一套）阅读 section B
For comparison, let's say you wanted to "jam" a conversation between two people—all you'd need to do is yell in the listener's ear.
2016年12月四级真题（第一套）阅读 Section B
The team at Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and claiming that there aren't any documented cases of successful jam attack since the company began offering wireless security sensors in the 1980s
2016年12月四级真题（第一套）阅读 Section B
Traffic jam leads to expense and unpredictability, things that keep investors away.
2017年12月四级真题（第三套）阅读 Section C
本文参考文献：
1 http://www.mcb5.cn/some
2 http://www.mcb5.cn/our
3 http://www.mcb5.cn/new
4 http://www.mcb5.cn/may
5 http://www.mcb5.cn/see
6 http://www.mcb5.cn/them
7 http://www.mcb5.cn/like
8 http://www.mcb5.cn/help
9 http://www.mcb5.cn/want
10 http://www.mcb5.cn/than
11 http://www.mcb5.cn/know
12 http://www.mcb5.cn/just
13 http://www.mcb5.cn/no
14 http://www.mcb5.cn/way
15 http://www.mcb5.cn/after
16 http://www.mcb5.cn/use
17 http://www.mcb5.cn/most
18 http://www.mcb5.cn/learn
19 http://www.mcb5.cn/because
20 http://www.mcb5.cn/could
核心重点高频常考单词-jam的发音/词性词义/用法/同近反义词/记忆法/词根词缀/高级替换词/中英文例句-秒词邦免费背单词赚钱微信小程序
单词拼写：
jam
音标发音：
[dʒæm][dʒæm]
速记技巧：
词源词根法
拆：
词源不详，可能来自cram变体，塞进，强塞，引申词义堵塞，塞车。果酱义可能来自同一词源，即把水果压碎制成果酱。
记：
“He got stuck in the jam.”（他陷入了交通堵塞中。）“She likes to make jam from fresh fruit.”（她喜欢用新鲜水果制作果酱。）
英英释义：
Noun:
1.preserve of crushed fruit2.informal terms for a difficult situation; "he got into a terrible fix" "he made a muddle of his marriage"3.a dense crowd of people4.deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems
短语词组：
the traffic jam交通阻塞
the jam jar果酱罐
be in〔get into〕 a jam陷入困境
get out of this jam摆脱困境
jam the enemy stations干扰敌人的电台
jam hands夹手
jam stores挤进商店
jam street挤上街道
jam in(将…)挤进〔塞进〕
jam on猛压,猛踩
jam clothes into a suitcase把衣服塞进箱子
jam into a bus挤进公共汽车
jam into a lift挤进一间电梯
jam with使…挤满
同义词辨析：
block choke clog dam jam【导航词义：挡住】
blockv.堵塞，阻挡
〔辨析〕
指堵住通道，使人或物无法通过，语气较强。
〔例证〕
A big stone is blocking the road.
一块大石头挡在路上。
Something blocked the flow of water through the pipe.
有什么东西堵塞了管道里的水流。
chokev.堵塞；（使）窒息
〔辨析〕
指将某处塞满东西造成堵塞；也可以指使人呼吸困难。
〔例证〕
A pile of garbage choked the pipe.
一大坨垃圾堵塞了管道。
The gutter was choked with debris.
排水道被垃圾堵住了。
That pungent perfume almost choked me.
那刺鼻的香味差点儿让我喘不过气来。
They choked on the smoke from the chimney.
他们被烟囱冒出的烟呛得透不过气来。
clogv.塞满，阻塞
〔辨析〕
指堵塞道路、孔洞等。
〔例证〕
Every summer, there are cars clogging the road to the beautiful beach.
每年夏天都会有汽车把那条通往迷人海滩的道路堵得水泄不通。
The water pipe was clogged with debris.
水管子被废弃物堵了。
damv.阻止，抑制，筑坝拦水
〔辨析〕
主要指阻挡住涌流物，如河水、眼泪等，常与副词 up，back 连用。
〔例证〕
dam (up) the river
在河上建坝
It is ridiculous for him to try to dam the flow of history.
他试图阻挡历史进程的做法是荒谬的。
That poor girl dammed back her tears.
那个可怜的女孩强忍住眼泪。
jamv.（使）挤满
〔辨析〕
指因人、车辆等过多而使某处无法通行。
〔例证〕
The strikers jammed the streets so no car could move.
罢工者把街道堵死了，没有汽车可以通行。
Children jammed the entrance to the fair.
孩子们把游乐场的入口处挤得水泄不通。
双语例句：
1.Louis: Seems like you got yourself in a jam, huh? I wish there was something I could do to help you out.
路易斯：看起来你自己好像有麻烦了，哈？我希望能帮你点忙。
2.Then the mouse came out of her jam pot, and Benjamin took the paper bag off his head, and they told the doleful tale .
然后那鼠从她的果酱罐出了来，接著本杰明从头上取下了纸袋，之后他们说出了那个令人伤心的故事。
3.There are great dangers in trying to dish this sort of dose up with jam for the patient.
如果要想把这种药物加上果酱一齐给病人吃，那是非常危险的。
4.The reason why she was late for the exam was that she got stuck in a traffic jam.
她考试迟到的原因是遇上了塞车。
5.They asked students to choose between things like a pair of CDs or two flavors of jam.
他们要求学生在一些物品当中进行选择，例如一对CD或两种口味的果酱。
6.My summer jam is Rihanna's "Umbrella, " and I think it's easy to see why.
我的夏日劲歌就是蕾哈娜的〈小雨伞〉，而且我想理由一目了然。
7.Place a few slices of duck , pieces of scallion and a teaspoon of jam on the pancakes, and roll it up to eat.
在煎饼上放几块烤鸭，几段大葱，一匙酱，把饼卷起即可食用。
8.You and I are like two kids around a mysterious jam-jar. Little by little, we taste the jam, and find how much sweet there contains.
我和你就好像两个小孩子，围着一个神秘的果酱罐，一点一点地尝它，看看里面有多少甜。
9.The traffic jam in this narrow road is usually during the peak hours, and sometimes has to wait for a long time before able to get out.
在繁忙时间该处面对交通堵塞通，有时要等待很长的时间才能通车。
10.Pretty soon, we may even live up to the bragging motto I made up for our posters and Web site: 'Beijing's premier blues and jam band. '
不久之后，我们可能真的能实现我在海报和网站上放出的豪言壮语：“北京一流的蓝调和爵士乐队”。
全部四级六级高考考研例句：
Wireless security providers will often take steps to help combat the threat of jamming attacks.
出自-2016年12月阅读原文
When the system thinks it's being jammed, it'll notify you via -94- push alert ( ' , 推送警报).
出自-2016年12月阅读原文
Then, he's going to need to know the technical details of your system and acquire the specific equipment necessary for jamming your specific setup.
出自-2016年12月阅读原文
The team at Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and claiming that there aren't any documented cases of successful jam attack since the company began offering wireless security sensors in the 1980s.
出自-2016年12月阅读原文
That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? With the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?Jamming concerns are nothing new, and they're not unique to security systems.
出自-2016年12月阅读原文
So, too, would the motion detectors in your home, so the thief will need to continue jamming once he's inside and searching for things to steal.
出自-2016年12月阅读原文
SimpliSafe, winner of our Editor's Choice distinction, utilizes a special system that's capable of separating incidental RF interference from targeted jamming attacks.
出自-2016年12月阅读原文
SimpliSafe was singled out in one recent article on jamming, complete with a video showing the entire system being effectively bypassed with handheld jamming equipment.
出自-2016年12月阅读原文
SimpliSafe provides devices that are able to distinguish incidental radio interference from targeted jamming attacks.
出自-2016年12月阅读原文
Other systems also seem confident on the subject of jamming.
出自-2016年12月阅读原文
Jamming attacks are absolutely possible.
出自-2016年12月阅读原文
It's easier to find and acquire jamming equipment for some frequencies than it is for others.
出自-2016年12月阅读原文
It is possible for burglars to make jamming attacks with the necessary equipment and skill.
出自-2016年12月阅读原文
He'll need to be jamming you at this point, as a broken window or opened door would normally release the alarm.
出自-2016年12月阅读原文
For comparison, let's say you wanted to jam a conversation between two people—all you'd need to do is yell in the listener's ear.
出自-2016年12月阅读原文
But how probable is it that someone will successfully jam their way into your home and steal your stuff?Let's imagine that you live in a small home with a wireless security setup that offers a functional anti-jamming system.
出自-2016年12月阅读原文
As said before, with the right equipment and the right know-how, it's possible to jam any wireless transmission.
出自-2016年12月阅读原文
A burglar has to continuously jam the wireless security device to avoid triggering the alarm, both inside and outside the house.
出自-2016年12月阅读原文
To prevent possible traffic jams in nearby areas.
出自-2013年6月阅读原文
Jane may be caught in a traffic jam.
出自-2011年6月听力原文
But how probable is it that someone will successfully jam their way into your home and steal your stuff?
2016年12月四级真题（第一套）阅读 section B
For comparison, let's say you wanted to "jam" a conversation between two people—all you'd need to do is yell in the listener's ear.
2016年12月四级真题（第一套）阅读 Section B
The team at Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and claiming that there aren't any documented cases of successful jam attack since the company began offering wireless security sensors in the 1980s
2016年12月四级真题（第一套）阅读 Section B
Traffic jam leads to expense and unpredictability, things that keep investors away.
2017年12月四级真题（第三套）阅读 Section C
本文参考文献：
1 http://www.mcb5.cn/some
2 http://www.mcb5.cn/our
3 http://www.mcb5.cn/new
4 http://www.mcb5.cn/may
5 http://www.mcb5.cn/see
6 http://www.mcb5.cn/them
7 http://www.mcb5.cn/like
8 http://www.mcb5.cn/help
9 http://www.mcb5.cn/want
10 http://www.mcb5.cn/than
11 http://www.mcb5.cn/know
12 http://www.mcb5.cn/just
13 http://www.mcb5.cn/no
14 http://www.mcb5.cn/way
15 http://www.mcb5.cn/after
16 http://www.mcb5.cn/use
17 http://www.mcb5.cn/most
18 http://www.mcb5.cn/learn
19 http://www.mcb5.cn/because
20 http://www.mcb5.cn/could
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