1、 SONET has long been the medium of choice for delivering services over metropolitan - area networks ( MAN ).
同步光缆网(SONET)早已是在城域网 ( MAN ) 上提供服务的媒介选择.
来源:互联网
2、 It's a simple matter to circulate a newspaper in the metropolitan area.
在大城市的市区内发行报纸是很简单的事.
来源:网络期刊摘选
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