The smile froze on her lips.

她脸上的笑容僵住了。

《牛津词典》

The smile on her face made it all worthwhile.

她脸上的笑容使得这一切都非常值得。

《牛津词典》

The smile on their faces disappeared.

他们脸上的笑容消失了。

youdao

The smile on others' lips my happiness."

VOA: special.2009.11.15

In Alice in Wonderland, the Cheshire Cat disappears and all we have left, the last thing that disappears, is the smile.

在《爱丽丝漫游仙境》里面,笑脸猫消失不见了而剩下的,最后一个东西,就是微笑

耶鲁公开课 - 死亡课程节选

But of course, when you imagine the Cheshire Cat only having the smile there, you're still imagining the cat's lips, teeth, maybe tongue, whatever it is.

但是当然,当你想象笑脸猫只剩下微笑的时候,你仍然想象着它的嘴唇,牙齿 或许还有舌头,不管是什么

耶鲁公开课 - 死亡课程节选

The smile is there because he is practicing living at that instant of danger.

NPR: An Athlete of God

After the misery of her ban, the smile beams like never before and why not?

BBC: Banishing the Beijing demons

The smile on her face was unbelievable, she was just a lovely little girl, my baby.

BBC: Hannah Windsor murder: Boyfriend Adam Lewis jailed