But the fat content of the body may be of equal importance, because it determines your buoyancy and the amount of energy you must expend to simply stay on the surface of the water.
但是身体的脂肪含量也同样重要，因为它决定了你的浮力和让你停留在水面上必须花费的能量。
But the fat content of the body may be of equal importance, because it determines your buoyancy and the amount of energy you must expend to simply stay on the surface of the water.
但是身体的脂肪含量也同样重要，因为它决定了你的浮力和让你停留在水面上必须花费的能量。
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