送交者: HunHunSheng 于 2005-9-06, 11:14:52:
回答: 双杠练肌肉 ZT for Coubert 由 HunHunSheng 于 2005-9-06, 11:12:31:
But it seems in USA the new thinking is 仰卧起坐 is obsolete and detrimental and the crunch should replace it
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