他们犹豫地相视而笑。

They smiled uncertainly at one another.

《牛津词典》

她把一只手叉着腰，嘲弄地咧嘴而笑，而此时我已怒火中烧。

She put a hand on her hip, grinning derisively, while I seethed with rage.

《柯林斯英汉双解大词典》

我父母会因对方的笑话而笑。

My parents laugh at each other's jokes.

youdao

In any event,the fans of the personality theory shouldn't be laughing too hard, because they're going to have to say something similar.

而人格理论的拥护者也不该笑得太早，因为他们要说的也是一样。

耶鲁公开课 - 死亡课程节选

And so being able to just laugh at it and have a good attitude about it,

所以，我们可以对它一笑而过，并对它抱有良好态度，

印象深刻的展示会 - SpeakingMax英语口语达人

The general story of why we can't in general is because there's no surprise, there's no mock aggression, and also there may be a general deadening of self-stimulation.

为什么大部分人不能胳肢自己,是因为它在我们意料之内，没有打闹的侵略性，通常这种引自己笑的念头都会嘎然而止。

耶鲁公开课 - 心理学导论课程节选