身体只有在休息期间才会适应训练的强度并且变得更强壮。
It's during rest that the body ADAPTS to the stresses of training and grows stronger.
只有这样，我们才会有空闲时间去做运动，让自己更强壮，还可以参加一些社交活动，使我们在精神和身体上更健康。
Only in this way can we have spare time to do more physical exercise to make us stronger, and to take part in social activities to make us mentally and physically healthier.
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