Teachers always keep a sharp eye on those naughty boys in class.

老师们在课上总是会密切关注那些淘气的男生。

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I have forwarded your photo to our manufacturing teams and they will keep a sharp eye on the cosmetics at the regulators.

我将把你的照片发给我们的加工部门，让他们更加注意元件焊点的美观。

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Of course, some mergers come with culture clashes that are unrelated to differing nationalities, and it pays to keep a sharp eye on those, too.

当然，有些并购带来的文化冲突并不涉及不同的民族，但你还是要对它保持敏锐的关注。

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Mr Cardoso and the world have also to keep a sharp eye on Congress.

ECONOMIST: No peace for Brazil��s president

The point is not to expect Thailand to produce greater-than-average returns on its shares and to keep a sharp eye out for transaction costs, which are often higher in emerging markets.

ECONOMIST: Buttonwood