by means of =by 借用、使用
by all means 一定、务必
by no means 决不、并没有(放于句首要倒装)
3.protect vt.保护
protect sb./sth.from /against 使......免受......(损害)
under the protection of 在.......的保护下
拓展比较
defend ...from /against ..保卫......免于......
guard ....from /against ...保护......免于
prevent/stop sb. (from)doing sth .=keep sb. From doing sth.阻止某人做某事
keep sb. Doing sth. 使某人不停的做某事
4.watch v. n.观看、注视
watch out 当心,注意(单独使用)
=look out /take care /be careful
watch out for 当心、小心(接宾语),watch out of 朝......外面看
keep watch for 等待、等候 , keep a close watch on 密切注意
watch it 当心、小心 ,Watch over 照看、
be on the watch for 小心警戒
拓展比较
keep an eye on 留意、监视、照看
keep one's eyes open for 留意、警惕
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