Correct

抖动

/ dǒudòng / 
Strokes

Definition

to tremble

Example

As a Verb

shake; tremble; vibrate

1
Tā
他
xiào
笑
de
得
shēnzǐ
身子
zhí
直
dǒudòng
抖动
  
。

He was shaking with laughter.