1 PHRASAL VERB 消除;终止;废除 To do away with something means to remove it completely or put an end to it. 消除;终止;废除
SYN get rid of, remove, eliminate, axe [informal]
2 PHRASAL VERB 杀死;干掉;自杀 If one person does away with another, the first murders the second. If you do away with yourself, you kill yourself. 杀死;干掉;自杀 [informal]