It's not about weight, it's about fitness, and one component of being fit is to have relatively low body fat, because fat is not very efficient, whereas muscle is.
这不是关于体重,而是关于健康,健康的一个组成部分就是拥有相对较低的身体脂肪,因为脂肪不是很有效,而肌肉是有效的。
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