smart alec

英 [ˈsmɑːt ælɪk]

美 [ˈsmɑːrt ælɪk]

n.  自诩聪明的人; 好逞能的人

牛津词典

noun

• 自诩聪明的人；好逞能的人
  a person who thinks they are very clever and likes to show people this in an annoying way

柯林斯词典

• N-COUNT 自作聪明的人;自以为是的人;神气活现的家伙
  If you describe someone as asmart alec, you dislike the fact that they think they are very clever and always have an answer for everything.
  1. ...a fortyish smart-alec TV reporter...
     年届不惑、自以为是的电视记者
  2. You'll end up no more than a smart alec and you're well down that road already.
     你最终只会变得自命不凡，而且你现在已经很有些自以为是了。

双语例句

• How much longer will it be before some smart alec from the building trade decides to replace conventional windows with electronic displays?
  但在建筑业那些自作聪明的人将传统的窗户改装成电子显示屏之前，人们抬头看世界的时间会有多长？
• You'll end up no more than a smart alec and you're well down that road already.
  你最终只会变得自命不凡，而且你现在已经很有些自以为是了。