If we are talking about new measures, they must be effective.

如果我们要采取新的措施，就必须有效。

youdao

Conclusions Multi-sectoral coordination and involvement of the whole society must be emphasized on AIDS prevention and care, and they must be effective and operable.

结论艾滋病防治工作必须强调多部门合作，动员全社会参与，并且可行、有效。

youdao

To be most effective, QE teams must be able to apply appropriate testing tools as they focus on system-level quality issues.

为了最有效地测试，QE团队必须在他们关注系统级质量问题时，能够应用合适的测试工具。

youdao

If we are talking about new measures, they must be effective.

WSJ: U.S. Tries to Line Up U.N. Rebuke

We know that for projects to be effective and programmes to be effective, they must be owned in the countries and must be of the countries themselves.

BBC: News Online

The great French political economist Fredric Bastiat long ago observed that for laws to be effective, they must be credible.

FORBES: Sorry USA Today, But the Gang-of-Eight's Immigration Bill Isn't Artful