Researchers have verified the pattern that most parents have observed: sleep patterns change at puberty, and kids can't seem to get out of bed in the morning. But they still stay up late at night.
研究者们证实了大多数家长所观察到的情况：孩子的睡眠习惯在青春期时有所变化，尽管孩子们早上起不了床，他们在晚上依然精神抖擞地熬夜。
I hate to scold you, but you shouldn't stay out so late at night.
我不想责骂你，但你晚上不应该在外边呆这么长时间。
I hate to scold, son, but you mustn't stay out so late at night.
我不喜欢斥责，孩子，可你不该呆在外面那么晚不回家。
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