研究者定义足够的运动量是除了体育课之外，每周至少五天，每天一小时。
The researchers defined adequate physical activity as at least an hour of exercise outside of gym class at least five days a week.
研究者定义足够的运动量是除了体育课之外，每周至少五天，每天一小时。
The researchers defined adequate physical activity as at least an hour of exercise outside of gym class at least five days a week.
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