Is the gas expelled by belching?

是否打嗝后就会放屁呢?



He said the more he ate, the more he farted.

他说他吃的愈多,放屁也愈多.



He has passed more gas than usual within the last two days.

过去两天中,他放屁比平常多.



Be careful not to fart in the public.

注意在公共场所不可放屁.



I have an upset stomach.

我消化不良.



He has bouts of diarrhea.=He is having trouble with diarrhea.

他拉了一阵肚子.



He has persistent constipation.

他经常便秘.



Something has upset my stomach for two weeks.

我的胃不舒服有两星期了.



Do you have regular bowel movement?

大便正常吗?