欢笑

Laugh and the world laughs with you, weep and you weep alone.

你笑时, 整个世界同你一起欢笑, 你哭泣时, 却只有你一人独自悲哀。

I put on my strained smile for the next customer.

我强颜欢笑来招呼下一个客。

He was a charming mixture of glum and glee.

他是一个很有魅力的人，时而忧伤时而欢笑。

Green pines laugh in the breeze.

青松迎风欢笑。