v.鞭打以示惩罚( thrash的过去式和过去分词 );战胜,完全击败;乱窜[跳],辗转反侧;打谷,打麦;
例句:
The swimmer thrashed about in the water.
那个游泳的人在水中用力地游动.
He thrashed the boy with a stick.
他用棍子打那男孩.
He thrashed about in bed with a high fever.
他因为高烧,在床上辗转反侧.