基于同样的原因，我们也拥有哭和笑这样类似的情感表达。

For the same reason we all have similar emotional expressions like smiling and crying.

youdao

还是在我们那个老家，在你的房间里，在我的房间里，你亲切地对我讲话。你笑，我也笑。

It was again in our hometown, you talked to me, you smile and I smile.

youdao

巴诺布猿也能笑，就像我们每天一样。

Bonobos can also laugh, just like we do every day.

youdao

我们开始笑时，他不得不也勉强笑了。

He had to smile when we began to laugh.

youdao

我们开始笑时，他不得不也勉强笑了。

He had to smile when we began to laugh.

youdao