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發表於 30-12-2009 00:18:04
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 原帖由 heinting 於 30-12-2009 12:04 AM 發表 
what about food particals? food are digested and broken down into small particals in the stomach by various enzymes. as you excerise, the small intestine moves more vigorously. theres a chance for ... Ya u r mostly correct,this was what i thought before:71:
But the probability is very very low:77: So the main reason is because of the local bacteria:77:
Too much bio stuff ,time for rider:!
[ 本帖最後由 timothy276217 於 30-12-2009 12:21 AM 編輯 ] |
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