You won't see muscle definition or a nice six-pack despite how many crunches you do, because of the layer of fat resting on top of your muscles.

不管你做多少仰卧起坐，你都不会看到清晰的肌肉轮廓或漂亮的六块肌，因为你的肌肉上有脂肪层。

youdao

You won't see muscle definition or a nice six-pack despite how many crunches you do, because of the layer of fat resting on top of your muscles.

不管你做多少仰卧起坐，你都不会看到清晰的肌肉轮廓或漂亮的六块肌，因为你的肌肉上有脂肪层。

youdao