n.拳头;拳
vt.紧握;握成拳;用拳打
例句:
Once he gets his fist on something he never lets go of it.
他一旦抓住了什么,就从不会放过.
He struck the hooligan down with his fist.
他挥拳把那个流氓打倒.
He hammered at the door with his fist.
他用拳头连续不断地敲门.