【飞机的一个现象】 观察30到40这个年纪的旅客，头等舱的旅客往往是在看书，公务舱的旅客大多看杂志用笔记本办公，经济舱则看报纸电影玩游戏和聊天的较多。在机场，贵宾厅里面的人大多在阅读，而普通候机区全都在玩手机。那么，到底是人的位置影响了行为呢，还是行为影响了位置呢？
abdomen
n.腹部
例句：Bloating, which is the buildup of gas in the stomach or intestines, causes the abdomen to swell and increase in size.
absorb
v.吸收
例句：Crohn’s disease, which begins with small sores on the surface of the intestine, and that can become large ulcers, can also affect a person’s appetite and the ability to digest and absorb food.
anus
n.肛门
例句：Hemorrhoids, which are inflamed veins in the rectum and anus, can occur as a result of straining during a bowel movement and can bleed and cause itchiness and irritation.
appendix
n.盲肠，阑尾
例句：A clogged and obstructed appendix can burst if it becomes inflamed and filled with pus.
backwash
n．反流
例句：Patients with GERD experience constant backwash of food and bile into their esophagus and this can lead to irritation and inflammation of the esophagus.
belch
n.打嗝，嗳气
例句：One way to expel excessive gas from the stomach is to belch.
belly button
n.肚脐
例句：I’m still having a pain that burns, you know, a burning pain around my belly button and my breastbone.
bile
n.胆汁
例句：Patients with GERD experience constant backwash of food and bile into their esophagus and this can lead to irritation and inflammation of the esophagus.
bloating
adj.膨胀的
例句：Symptoms of irritable bowel syndrome (IBS) include abdominal cramps, bloating, constipation, diarrhea, and gas.
bout
n.(疾病的)发作
例句：Patients with Crohn’s disease and ulcerative colitis, both of which are inflammatory bowel
diseases, can suffer severe abdominal pain and bouts of watery or bloody stool.
bowel
n.肠
例句：Irritable bowel syndrome is a chronic condition whose symptoms vary from person to person but can be disabling, including bouts of both diarrhea and constipation, a feeling of being bloated, abdominal cramping, flatulence, and mucus in the stool.
bowel movement
n.排便
例句：People who are constipated will either strain during a bowel movement, pass hard stool, or have infrequent bowel movements.
burp
n.打嗝（口语）
colon
n.结肠
例句：Constipation, diarrhea, rectal bleeding, blood in the stool, abdominal pain during a bowel movement, and weight loss are some symptoms associated with colon cancer.
colostomy
n.结肠造瘘术
constipation
n.便秘
例句：I’m a little bit embarrassed, but I need something to help me with my constipation.
contractions
n.收缩
cramping
n.痉挛
例句：Patients with ulcerative colitis can experience a range of symptoms that
include rectal bleeding, the inability to move their bowels despite the urge to do so, abdominal cramping, bloody diarrhea, weight loss, and even night sweats.
diaphragm
n.隔膜
diarrhea
n.腹泻
例句：A person with gastroenteritis, also called stomach flu because it is caused by a viral infection in the lining of the stomach, may experience vomiting, nausea, diarrhea, and indigestion.
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