?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

cordon off
大学

v. 用警戒线圈住

第三人称单数:cordons off现在分词:cordoning off过去式:cordoned off

1. The police have cordon off the town centre .
警察用警戒线围住市中心。
2. The final footage of him alive shows him walking past the line of police dog handlers, who have formed a cordon blocking off Royal Exchange passage.
他生前的最后一段画面显示他走过一列牵着警犬、围成警戒线堵住人群的警察。
3. Mr Lai is said to have then broken through the police cordon, climbed to where Mr Chen sat, greeted him with a handshake - and then pushed him off the edge.
赖先生据说当时冲破警察的警戒线,爬到陈先生所坐的地方,与其握手,然后把他推下去。
4. A 200m cordon was put in place, cutting off one of London's major transport arteries and causing further traffic chaos, after reports of the suspicious vehicle.
在报道有可疑车辆后,一条200米长的警戎线切断了伦敦一条主要的交通要道,造成更大的交通混乱。
5. That, I assumed, would cordon me off from the Net and keep me from spreading the bug while I figured out how to get rid of it.
我想这样一来就可以切断与因特网的联系,不至于传播病毒,再想办法清除。