哈哈 补充的很全面

所有跟帖： 

• 当然, 这几个阶段是个大概历程. 不同个体, 这些阶段的长短和 -TibetanYak- ♀ (181 bytes) () 12/03/2011 postreply 10:06:15

• 回复：Very good point, although they're more common than you may th -QinJin- ♂ (0 bytes) () 12/03/2011 postreply 13:28:12