See this- It does not seem his arms are bent when submerged
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, 13:31:43:
回答: The advantage of bent is it requires less strength 由 HunHunSheng 于 2006-5-25, 13:29:43:
所有跟贴:
加跟贴
所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl