Officers waited for the drug to take effect.

警官们等待药物生效。

youdao

Then officers waited for the drug to take effect.

然后，官员们等待药物生效。

youdao

The prescribed medicine failed to take effect.

医生开的那药没有效果。

《新英汉大辞典》

In Arizona, officers are now being trained in the new law set to take effect July twenty-ninth.

VOA: special.2010.07.03

Another side effect if you take too much lithium is death, so that's no good to have in sodas either, and it might not have been as big a deal back in the 1920's, but you can imagine with supersizing today, this might be a bigger problem.

另一个副作用是因为摄入锂过量而死，这更说明在汽水里放这种东西是不好的，这在二十世纪二十年代可能没什么大问题，但你可以想象在如今这个什么都超标的时代，这也许会出更大的问题。

麻省理工公开课 - 化学原理课程节选

The United States Senate and Russia's parliament must both approve the agreement for it to take effect.

VOA: special.2010.04.17

Temporary changes to maternity and paediatric services in East Sussex are to take effect from Tuesday.

BBC: Eastbourne District General Hospital

The rules must be published Friday to take effect before Obama is sworn in Jan. 20.

CNN: Bush set to relax endangered species rules

The TSA did not give a new date for the policy to take effect.

CNN: U.S. to keep restriction on small knives on planes for now