Why Do We Hiccup？  

作　　者：许佑嘉(编译) 

出　　处：《英语画刊（中级）》2018年第11期15-15,共1页English Pictorial

摘　　要：当我们的膈肌感到不适时，常常会发生恼人的打嗝。膈肌是胸腔底部的肌肉，当我们呼吸时，它能够帮助我们把空气吸进肺里。The often annoying hiccup happens when our diaphragms get upset. The diaphragm is a mus- cle at the bottom of the rib cage. It helps pull air into our lungs when we breathe. Every once in a while, the diaphragm gets irritated and starts pulling air into the lungs the wrong way. We experience this as a hiccup.

关 键 词：英语学习 学习方法 阅读知识 阅读材料 

分 类 号：H31[语言文字—英语]