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'Sit still!' she thundered.

“坐着别动！”她怒喝道。

《牛津词典》

Can't you sit still ?

你就不能老老实实坐一会儿吗？

《牛津词典》

The World Health Organization says passengers who sit still for four or more hours face a greater risk of developing blood clots.

VOA: special.2009.07.14

Or, if you're a pediatrician with a really small patient who will not sit still, it's because the laws of quantum mechanics don't allow an object to have a definite position and momentum.

或者你是个儿科医生,而你的小病人却总也坐不住,这是因为量子力学,不允许物体同时具有确定的位置和动量

耶鲁公开课 - 基础物理课程节选

That is,to be restless and unable to sit still.

VOA: special.2009.06.28

She has the ability to make anything fun and finds it very difficult to sit still.

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Disney is a cautious owner, but they do not sit still and just milk royalties.

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It did, however, force him to sit still, which is something he has trouble with.

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