知识扩展
易混词辨析
recurrence、recur、repeat、repetition、occurrence
1. recurrence:名词 “复发;重现;再次发生”(侧重 “事件、疾病的再次出现”,如 “recurrence of the disease”“recurrence of the problem”);
2. recur:动词 “复发;重现;再次发生”(如 “dreams recur”“problems recur”);
3. repeat:动词 / 名词 “重复;重做”(①动词:“repeat the experiment”;②名词:“a repeat of the show”),比 recurrence 更侧重 “主动重复”;
4. repetition:名词 “重复;反复”(侧重 “动作、语言的重复”,如 “repetition of the word”“repetition of the process”),比 recurrence 更侧重 “主动重复”;
5. occurrence:名词 “发生;事件”(侧重 “单次发生”,如 “occurrence of the accident”“an unusual occurrence”),比 recurrence 更侧重 “单次”。
词组短语
recurrence rate[计]重复率;[医]再发率;recurrence formula递推公式;递归公式;循环公式