送交者: HunHunSheng 于 2008-12-06, 21:00:15:
回答: 蛙泳一天就能学会 由 HunHunSheng 于 2008-12-06, 20:11:44:
现在干什么事情都讲究科学系统理性所以学同样的东西比小时候要快. The first thing to do is to read a book or read a
web abpout swimming to earn theoretical and scientific knowledge about swimming