bright spark
US /braɪt spɑːrk/
UK /braɪt spɑːrk/

1.
聰明人, 才子
a clever and intelligent person (often used ironically to mean the opposite)
:
•
Our new intern is a real bright spark; he solved the problem in minutes.
我們的新實習生真是個聰明人;他幾分鐘內就解決了問題。
•
Oh, you forgot your wallet again? What a bright spark you are!
哦,你又忘了錢包?你真是個“聰明人”!