Some preteens are able to handle a good deal of responsibility.

一些青春期前的儿童有能力承担很多责任。

《柯林斯英汉双解大词典》

Get plenty of sleep. Sleep is directly related to academic performance. Preteens and teenagers especially need to get regular, solid sleep.

保证充足的睡眠。睡觉和学习表现有直接关系。青少年尤其需要规律，有质量的睡眠。

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Get plenty of sleep. Sleep is directly related to academic performance. Preteens and teenagers especially need to get regular, solid sleep.

保证充足的睡眠。睡觉和学习表现有直接关系。青少年尤其需要规律，有质量的睡眠。

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