potluck

百乐餐、一人一菜聚餐美式

We're having a potluck on Saturday, so bring a dish to share.

我们周六要办百乐餐，请带一道菜来分享。

有什么吃什么、家常便饭

Come over for dinner, but you'll have to take potluck.

来我家吃晚餐吧，不过只能有什么吃什么。

运气、碰运气英式

Whether you get a good seat is just potluck.

能不能坐到好位子完全是看运气。

各自带菜的、百乐餐形式的美式

The club holds a potluck supper at the start of each semester.

社团每学期开学都会办一场各自带菜的晚餐聚会。