单词smart alec
n.: 自诩聪明的人；好逞能的人
网络: 自作聪明的人；精明的人；自命不凡之人
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
自作聪明,自以为样样都懂;刚愎自用
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？
This is where I say something that a smart-alec at a party would no doubt disagree with, and then I triumph by having data to back it up.
我要说的话无疑会遭到在派对上自作聪明的人的反对。但我最终会胜利的，因为我有数据支持。
Unfortunately for you, smart-alec, I Got the Data.
很不幸，自作聪明的家伙，我找到了有关的数据。
He keeps telling the instructor what to do - the smart Alec.
他老是命令教员怎么做——一个自以为了不起的家伙。