judder

动词 judder:

1. shake or vibrate rapidly and intensively
   同义词：shake

1. The engine gave a sudden judder.
   发动机猛然一震。

jud.der

v.intr.（不及物动词）
jud.dered,jud.der.ing,jud.ders
To shake rapidly or spasmodically; vibrate conspicuously:
震颤，振动：迅速或猛烈地震颤；明显地振动：
例句：
.Edith would watch her wrestling with words, her thin lttle body juddering with the effort to unlock them.(Anita Brookner)
.伊迪丝会看着她苦苦对付单词，她小小的，瘦弱的身体因为费力的思索而颤抖着.(阿尼塔·布鲁克诺)

n.（名词）
A rapid or spasmodic shaking.
颤动：迅速或猛烈的抖动

来源：
Perhaps j(erk)
可能为 j(erk)
(sh)udder
(sh)udder