1.通过作用
It acts on the nervous system to lower blood pressure.(2006 Times)
它对神经系统产生影响，使血压降低。
2.被
He was caught in the act of fraud.（2003 Time）
他行骗时被逮个正着。
3.行动，行为
There should be immediate legal action against the site.（2008 US News）
应该立刻起诉该网站
4.实际
Fourteen years elapsed between preparation and completion, but the actual construction took only about three years. (2005 Topos)
从准备到完成共延续了十四年时间，而建造本身只花费了约三年时间。
5.代劳
the frosted matter being transported to lakes through the agency of floating ice。（2008 Nature）
这些结霜物质通过浮冰进入湖中 。
6.严格
Reid also believes that the county must exact more concessions from developers. （2007 The Washington Post）
瑞德认为郡政府必须迫使开发商作出更多的让步。
