eat out

在外吃饭, 侵蚀, 吃光

例句与用法：

I'm too tired to cook tonight; shall we eat out?

我今晚累得不想做饭了，咱们下饭馆好吗?

Are you going to eat in or eat out?

你今天打算在家吃饭还是在饭馆吃饭?

We prefer to eat out.

我们比较喜欢上馆子吃饭。

How often do you eat out?

你隔多久在外面吃一次饭？

详细释义：

1. 上馆子吃饭

They usually eat out on Sundays.

星期天他们通常上馆子吃饭。

2. 锈坏; 使腐烂

Rust had eaten out the gun barrel.

枪筒已被锈蚀。