Be sure to do some eye exercises to relax your eyes after you study for a long period of time.

在长时间学习后，一定要做眼保健操来放松眼睛。

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Be sure to do the sowing in good time.

确保适时播种。

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Therefore, when using the Internet, be sure to do it in moderation.

所以在上网时，还是要有所节制才好。

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"He said Mister Clay seemed to be very weak and had a very bad cough, that he was sure Mister Clay wanted to do something for the good of his country during the little time he had left on Earth.

VOA: special.2009.03.26

So again, we should be able to check all of our formal charges and make sure they add up to 0, which they do, and that makes sense, because we have a neutral atom in terms of thionyl chloride.

因此同样地，我们可以检验一下,我们所有的形式电荷是否正确,确保它们加起来等于零，而它们确实是这样，这是合理的，因为亚硫酰氯是一个中性原子。

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And they want to be sure that before you get married, you can do things in the house.

他们想在结婚之前确认，你能做家务。

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On this count, select your managers very carefully and be sure to do your due diligence.

FORBES: Review: The Little Book of Bulls Eye Investing

Since this is a very basic screen, be sure to do further research before buying any of the stocks.

FORBES: Why There May Be A January Effect For Large-Cap Stocks

But be sure to do so with clean, clear content and easy-to-read formatting.

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