expunge
verb [ T ] formal uk/ɪkˈspʌndʒ/ us/ɪkˈspʌndʒ/
删去;抹去;勾销
to rub off or remove information from a piece of writing
His name has been expunged from the list of members. 他的名字被从成员名单中删除了。
使淡忘;（从记忆中）抹掉
to cause something to be forgotten
She has been unable to expunge the details of the accident from her memory. 那次事故的细节总是萦绕在她记忆中，怎样都无法抹去。