He shifted uncomfortably in his seat when I mentioned money.

我提到钱时，他便坐不住了。

《牛津词典》

The Rat sighed, sinking back in his seat again.

水鼠叹了口气，又陷进座位里。

youdao

After they were seated, the mother saw a friend and walked up to greet her, leaving the boy alone in his seat.

他们坐好后，母亲看到了一个朋友，就走过去打招呼，把小男孩一个人留在了座位上。

youdao

He had to struggle to reach forward for the controls while being pushed back hard in his seat.

VOA: special.2010.07.07

A man also in his twenties or thirties rocks back in his seat.

VOA: special.2009.08.31

President Lincoln settled down in his seat to enjoy the play.

VOA: special.2009.12.31

When we finally reached the turn for Coaltown, he leaned forward in his seat slightly.

NEWYORKER: The Cold Outside

Dr Murray sat silently in court, shifting slightly in his seat as the verdict was read out.

BBC: Conrad Murray guilty of Michael Jackson manslaughter

In his seat on the committee, where Habib serves as vice chair, he sometimes leaned over to whisper to colleagues.

NPR: For Blind Lawmaker, Biography Reflects In Policy