这些温室气体大多是以甲烷的形式存在，甲烷是一种特别强力的温室气体，是由牛羊肠道里的微生物生产出来的，最终被排放到大气中。
Much of this comes in the form of methane - an especially potent greenhouse gas - produced by microbes in the guts of grazers such as cattle and sheep, and eventually belched out to the atmosphere.
如果气体不能通过打嗝或排气排出体外，就会聚积在胃肠道，从而引起腹胀。
When gas doesn't pass through belching or flatulence, it can build up in the stomach and intestines and lead to bloating.
奥利司他肠痉挛、肠道产生气体以及油性斑点
屁憋得越久，其中惰性气体氮气所占的比例就越大，因为其他气体会通过肠道壁被吸收进毛细血管里。
The longer a fart is held in, the larger the proportion of inert nitrogen it contains, because the other gases tend to be absorbed into the bloodstream through the walls of the intestine.
胃肠道疾病如胃食道反流症或溃疡在病人打饱嗝和气体溢出时有时也能引起口臭。
Sometimes GI problems such as GERD or an ulcer can cause bad breath when you burp and gas is released.
胃肠道疾病如胃食道反流症或溃疡在病人打饱嗝和气体溢出时有时也能引起口臭。
Sometimes GI problems such as GERD or an ulcer can cause bad breath when you burp and gas is released.
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