expunge
/ɪkˈspʌndʒ/verb
with obj.
- erase or remove completely (something unwanted or unpleasant)擦去; 抹去; 除去; 删去; 勾销：
he could expunge an unsatisfactory incident from his memory.
他可以将不满意的事情从记忆中彻底抹去。
派生词
expunction
nounexpungement
nounexpunger
noun词源
early 17th cent.: from Latin expungere 'mark for deletion by means of points', from ex- 'out'+pungere 'to prick'.