原帖由 雲吞 于 2009-1-31 09:45 发表 ( Y0 _# l2 u; D0 I 9 v. l3 L5 Y8 O$ Z $ j/ ^8 c3 C5 x$ w9 g2 WI'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 0 K0 w* [( S4 G+ ?
" _- W/ Z9 A$ [& m+ T& Y" E: B4 j. U9 k
) g0 F# t: h/ A
I'll tell the professor, you don't feel lower back pain when you are talking standing.