Research has shown that lack of sleep can affect a child's temperament, behavior, alertness, and ability to learn.

研究显示如果缺少睡眠可能会影响孩子的性情、行为、反应灵敏性和学习的能力。

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Research has shown that lack of sleep can affect a child's temperament, behavior, alertness, and ability to learn.

研究显示如果缺少睡眠可能会影响孩子的性情、行为、反应灵敏性和学习的能力。

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