He tends to fidge when he's nervous.

他紧张时会坐立不安。

Please don't fidge during the presentation.

请在演讲时不要坐立不安。

She started to fidge as the exam time approached.

随着考试时间的临近，她开始坐立不安。

The child couldn't stop fidge during the long meeting.

那个孩子在长时间的会议中一直坐立不安。

He tried to fidge quietly so as not to disturb others.

他试图悄悄坐立不安，以免打扰他人。