I have visited some of the newer supposedly "effective" schools, where children shout slogans in order to learn self-control or must stand behind their desk when they can't sit still.

我参观过一些据说“有效”的新学校，在那里，孩子们喊着口号来学习自控，当他们不能安静地坐着时，必须站在桌子后面。

youdao

'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.

FORBES: What Are The Pros And Cons Of Disney's $4.05B Purchase Of Lucasfilm?

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

NPR: Rudolf Buchbinder's Robust Beethoven