vt.使(感觉、痛苦等)减弱；使隔音
vi 死去；失去活力或光泽；不快乐.
Her feet were deaden with cold. 她的脚都冻得麻木了。
Unhappiness had deadened her to the lives of others. 她遭遇不幸,因而对别人的生活也无动于衷。
