We're new in East Asia, so we have to be careful in choosing the location for our regional office.

我们刚刚来到东亚，所以必须小心谨慎地选择区域办事处的地点。

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Be careful in all things.

凡事要小心。

《新英汉大辞典》

The fellow is as sharp as a razor. Be careful in your dealings with him.

这家伙厉害得很， 你和他打交道时要特别小心。

《新英汉大辞典》

Cleveland warned that it would be far better to make safe,careful, and intelligent changes in the tariff laws now.

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So it's a way of reminding you, I've got to be careful about the types of things that I put in.

因此我这是在提醒你，一定要对输入的东西的类型,多加注意。

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And you don't have to be too careful or fine about gradations of punishment in the state of nature.

而且在自然状态中，你不必,对实施惩罚的程度太过小心。

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Why carrer women are best marriage partners Guys, please, be careful in the way you interpret this articles.

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"I would be careful in buying today something for far above market, " he adds.

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"We have to be careful in distinguishing between reality and fantasy, " said Sheen, the fictional Bartlet.

CNN: A presidential sheen