wear off

US /wer ˈɔf/
UK /wer ˈɔf/
"wear off" picture
1.

消退, 逐渐消失, 失去效力

to gradually disappear or stop having an effect

:
The effects of the painkiller started to wear off.
止痛药的效果开始消退
The novelty of the new toy will soon wear off.
新玩具的新鲜感很快就会消失