So they must be more alert and active in order to be more successful.

所以，为了更加成功，他们必须更加警惕，更加活跃。

youdao

And they must be really active in Argentina (despite its nationalized oil companies), where environment ties for dead last among the eight issues, and only 5.9 per cent of the respondents ranked it as the most important environmental problem. (Weirdly enough, it ranks absolute lowest in Israel).

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To prevent women from getting cervical cancer, women must be inoculated before they become sexually active.

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