购买
下载掌阅APP,畅读海量书库
立即打开
畅读海量书库
扫码下载掌阅APP

Warm-up

1. What kinds of digestive problems did you ever experience?

2. What are common digestive symptoms that can occur in the digestive system? fTCBpz8+nnAyBWBxBRwSVpl/dvSEaksMZgi/BS+uDMSXuGtqBBxXtr9D4kBmuRUH

点击中间区域
呼出菜单
上一章
目录
下一章
×