jerk

She jerked open the car door and got out..她猛地打开车门下了车。

Doyle jerked at the girl’s hair to make her sit down..多伊尔猛扯那姑娘的头发，让她坐下。

He raised his eyebrows and stuck his head forward and ______ it in a single nod, a gesture boys used then for OK when they were pleased.句意： 他扬起眉毛， 头伸向前， 猛地点点头， 这是那时男孩子们高兴时用来表示OK的姿势。shrug： 耸肩； tug： 用力挖， 苦干； twist： 扭曲。314twisted

clean and jerk,挺举

knee jerk,[医]膝反射