原帖由 雲吞 于 2009-1-31 09:45 发表 2 b, o- k8 S2 h2 Z' q/ t" @
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I'll tell the professor, you don't feel lower back pain when you are talking standing.
原帖由 雲吞 于 2009-1-31 09:45 发表 * ?: I$ P& [' v! ^0 J n9 c5 f" s- L! c) v. o6 }# d
1 q( i# A! W- D
I'll tell the professor, you don't feel lower back pain when you are talking standing.