If you’re reluctant to wake up and face the day or feelings of hopelessness are driving you to sleep long hours, it’s time to seek help from a mental health professional.

如果你不愿意醒来面对生活，或者绝望迷茫的情绪促使你睡得更久，那么是时候求助于心理医生了。

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Millions more suffer from serious sleep deprivation caused by long work hours.

还有数百万人由于工作时数长导致他们严重睡眠不足。

《柯林斯英汉双解大词典》

He took a long time getting to sleep that night.

他那天晚上过了好长时间才睡着。

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The next time you think about going without sleep, consider this: Laboratory animals that are kept awake for long periods of time ...die.

VOA: special.2009.08.26

But long story short, if I want to use a function called sleep, -- the reason I, the programmer, knew to use that library -- -- that header at the top -- because it told me to in this little synopsis.

但长话短说，如果我想要用一个叫做sleep的功能，我作为程序员知道使用那个函数库-,上面的标题-,因为在这个小的大纲中它告诉我。

哈佛公开课 - 计算机科学课程节选

Her dog barks all night long and won't let me sleep.

她养的狗整夜整夜地叫唤，让我根本没法入睡。

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For the study, very short sleep patterns were defined as less than five hours a night, short sleep was five to six hours a night, standard sleep was seven to eight hours, and long sleep was nine or more hours a night.

CNN: Does your diet influence how well you sleep?

It can also tell how long you sleep each night, as well as how long it takes you to nod off.

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According to sleep specialist Dr. Matthew Edlund, rest is as important as sleep to our long-term health.

FORBES: To Sleep Or To Rest?