The second injection should only have been given once the first drug had taken effect.

第2针本应只在第1针见效后才能注射。

《柯林斯英汉双解大词典》

A tough anti-smoking law has taken effect in Spain.

一项严厉的禁烟法在西班牙生效。

youdao

This medicine [remedy] has taken effect.

这药已见效了。

《新英汉大辞典》

The ministry has already taken some measures to that effect,"

VOA: standard.2009.08.29

That's the Matthew effect, those who hath little get even that taken away and thrown into prison.

这就是马太效应，没有的，连他所有的也要夺走，关进监牢里。

耶鲁公开课 - 心理学导论课程节选

We think that there is a need, while we are treating this matter, to examine the effect, or the impact of whatever decision that will be taken on the peace process in eastern Congo."

VOA: standard.2009.04.18

It has already taken effect after being signed by the president late on Sunday.

BBC: Protesters say new Indian rape law not strong enough

The arrangement has not taken effect as the two sides have argued over who should control which ministries.

CNN: Zimbabwe talks fail to reach deal

If approved by the City Commission, it would have taken effect at midnight.

CNN: STORY HIGHLIGHTS