wise guy
US /ˈwaɪz ˌɡaɪ/
UK /ˈwaɪz ˌɡaɪ/
1.
自作聪明的人, 爱耍小聪明的人, 油嘴滑舌的人
a person who is irritating because they think they know everything and try to be clever
:
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Don't be such a wise guy, just answer the question.
别当个自作聪明的人，直接回答问题。
•
He always has a sarcastic comment, a real wise guy.
他总是说些讽刺的话，真是个自作聪明的人。