Wipe that stupid smile off your face.

别那么傻笑啦。

《牛津词典》

I just don't want a bad fall to wipe that smile off your face.

我只是不想摔个难看的跟头，让笑容从你的脸上褪去。

youdao

Her mouth curved in an off-centre smile.

她撇着嘴笑。

《柯林斯英汉双解大词典》

' I said, 'Yeah, never wipe that smile off your face.

WSJ: New York Mets' Fred Wilpon: 'I Think We'll Be Fine'

She has so far handled the scrutiny beautiful, adopting a few key strategies: walking tall, remaining traditional and never turning off that megawatt smile.

FORBES: Prince William And Kate Middleton's Royal Wedding: The Honeymoon

Her Hedda has a doll-like beauty and a smile that she turns on and off like a switch.

BBC: Entertainment & Arts