Sick to my stomach: 没胃口。

再教大家一句回答的话:two bites: 吃两口吧。

单词解释：

stomach

基本释义

n.胃；胃口；腹部

vt.忍受；吃得下

例句：

He had had too much to eat and his stomach started to kick up.

他吃得太多了,胃不舒服。