下午，每过一个小时就适当喝点水。

Afternoon, every one hour on appropriate drank water.

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因此，每过一个小时左右，就站起来五分钟，舒展身体，走动一下，或是做做瑜珈。

So every hour or so get up for five minutes, stretch, walk around, or do some yoga.

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研究者进行实验时给志愿者一个BP机，这个机器每过两个小时会响一次。

Theresearchers conducted the study by giving each volunteer a beeper that went offevery two hours or so.

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