A：Have you eaten?
你吃过饭了吗?
B：Not yet.
还没有。
注释：
eat除表示“吃(饭)”以外，还有下列用法：
What's eating you/him?
什么使你/他苦恼?
例：What's eating John? He seems to be sad.
= What's bothering John? He seems to be sad.
(约翰在烦什么?他好像很难过。)
* bother vt.打扰，烦恼