2019年6月英语四级翻译练习题：睡眠紊乱
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炎炎夏季，四六级考试月来到了。再有三周左右就是考试时间了，各位同学可能也必须在努力备考中，无论是刷真题还是在上文都四六级冲刺班的同学们，天道酬勤，你们的勤奋加上文都四六级老师整理的四级翻译练习题：睡眠紊乱，必将带给大家一个好成绩。
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英语四级翻译练习题：睡眠紊乱
我们的身体夜晚需要休息，白天需要清醒。大多数人每晚需要8到8.5个小时的睡眠才能正常运转。找到更多的时间、更好的睡眠方法可能是个挑战。科学家已经确认了80多种不同的睡眠紊乱症(sleep disorders)。有些睡眠紊乱症是遗传的。但是，许多睡眠紊乱症是由于熬夜，经常跨时区旅行以及上夜班而引起的。
参考译文：
Sleep Disorders
Our bodies want to sleep at night and be awake during the day. Most women and men need between eight and eight and a half hours of sleep a night to function properly throughout their lives.Finding ways to get more and better sleep can be a challenge. Scientists have identified more than 80 different sleep disorders. Some sleeping disorders are genetic. But many problems are caused by staying up late and by traveling frequently between time zone or by working nights.
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