送交者: 匆匆过客 于 2005-9-07, 11:24:30:
回答: 李医生说老毛根本不用划水，躺在水上，自动就浮起来。 由 Latino2 于 2005-9-07, 10:56:05:
To float in water on one's back or belly doesn't involve his/her hands or feet. As long as the WHOLE body has the right posture, it can float. Limbs are used to propell.