He had a big smile on his face.

他笑容满面。

《牛津词典》

His girlfriend was a real uber-babe, with long blonde hair and a big smile.

他的女友是个超级靓妞，一头长长的金发，脸上带着灿烂的笑容。

《牛津词典》

I could see my dad there with a big smile.

我可以看到我的父亲在那里，脸上挂着大大的微笑。

youdao