show off

US /ʃoʊ ɑːf/
UK /ʃoʊ ɑːf/
"show off" picture
1.

炫耀, 卖弄, 出风头

to behave in a way that is intended to attract attention and admiration, and that other people often find annoying

:
He's always showing off his new car.
他总是炫耀他的新车。
She likes to show off her knowledge.
她喜欢炫耀她的知识。