jaw /dʒɔ:/ n. ［c］颌，颚：the lower/upper jaw 下(上)颚；a man with a strong jaw 下巴大的人She suffered a broken jaw.她下颌破裂。The lower jaw is movable.下巴是可以活动的。He fingered his jaw thoughtfully.他若有所思地摸着下巴。Her jaw was set, ready for a fight.她咬紧了牙关，做好了打架的准备。