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为了获得像岩石般坚硬的腹肌,尝试一下这个下斜绳索动作,给你的腹部一个持续的压力和一种令你永生难忘的灼烧感。
In order to get a hard rock-like abs, try this downward-sloping rope to give your abdomen a constant pressure and a burning sensation that will last forever.