The new rules will become effective in the next few days.

这些新条例将在接下来的几天内生效。

《柯林斯英汉双解大词典》

If we want students to become effective in multicultural settings, one thing is clear: there is no substitute for practice.

如果我们想让学生们在多元文化环境中变得高效的话，有一件事情是很清楚的：没有什么能代替实践。

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But we also need it to become effective citizens.

然而我们也需要劳动力变成高效的公民。

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DDT and other pesticides had become popular with the public and the government because they were so effective.

VOA: special.2010.03.14

But we also need it to become effective citizens.

然而我们也需要劳动力变成高效的公民。

麻省理工公开课 - 媒体、教育、市场课程节选

Yet it can become less effective as the disease progresses.

VOA: special.2009.02.03

If approved, the merger is expected to become effective around late October, the companies said.

FORBES: Update: McEwen Proposes Merger Of US Gold, Minera Andes

Shareholders will vote on the acquisition in April and it is expected to become effective by July.

BBC: Drug firm ProStrakan sold to Japanese group

Indeed, the employer mandate seems to have had such an effect even before it has become effective.

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