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。

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.

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德国消费者信心调查今年也精神抖擞，振作精神。

Surveysof German consumer confidence have also perked up this year.

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