A question about Front Crawl



所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl

送交者: HunHunSheng 于 2006-5-25, 13:09:51:

WHen you arms/hand push water backward (thus pushing
youir body forward), should your arm be straghtened
or bent at elbow?



所有跟贴:


加跟贴

笔名: 密码(可选项): 注册笔名请按这里

标题:

内容(可选项):

URL(可选项):
URL标题(可选项):
图像(可选项):


所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl