deaden
/ˈdedn; `dɛdn/ v
1 [Tn] lessen the force or intensity of (sth) 减低（某物）的力量或强度
drugs to deaden the pain 镇痛药
My thick clothing deadened the blow. 我的厚衣减轻了打击的力量.
Your constant criticism has deadened their enthusiasm. 你接二连三地批评降低了他们的热情.
2 [Tn.pr] ~ sb to sth make sb insensitive to sth 使某人对某事的感觉迟钝
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於衷.