回复:补充一些
来源:
MayX
于
2004-08-25 20:44:10
[
旧帖
] [
给我悄悄话
] 本文已被阅读:次
Some sources:
1.food not digested completely because of weak digestion system.
2.Toxin, bacteria accumulated in the bowel causing gas.
3.Food poison.
You can find info from here:
http://book.sina.com.cn/nzt/changneigeming/index.shtml