如果你睡得晚，你会在课堂上犯困。
同样地，美国人在有三天假期的周末晚上睡得晚，早上起得晚，睡眠时间最长。
Similarly, Americans' late nights, late mornings, and longest sleeps fall on three-day weekends.
我父母时常早上起得早，晚上也经常睡得晚。
My parents often get up early in the morning. They usually go to bed in the evening, too.
白天漫长，黑夜短促，因为在晴好的六月，太阳公公起得早而睡得晚。
The days are long and the nights are short, for the sun gets up early and goes to bed late in sunny June.
父母普遍做得不错，但是一些人错误地认为让孩子睡得晚有助于他们的睡眠。
Parents mean well, but some mistakenly believe that keeping their babies up late will help them sleep.
因为睡得晚，所以我起的也晚，然后导致的就是我的一天开始的也晚，这就意味着我的一天都是在赶工作，约会也总是迟到。
Because I slept late, I would wake up late. Subsequently, my day would start off late, which meant I was busy "playing catch-up" and being late for my appointments.
如果一个人第二晚呆在同一个房间，会睡得更香。
If a person stays in the same room the following night they tend to sleep more soundly.
家长们都知道，当你在寝室睡得好好的，突然有一个晚归的室友打开了灯是多么恼人的事情。
Parents might remember how annoying it was when we were sleeping in a dorm room and a roommate came in late and turned on the light.
年三十晚上，孩子们应该尽量晚一点再睡，因为人们认为睡得越晚，他们长辈的寿命就越长。
Children should stay up as late as possible on New Year's eve for it is believed that the later they stay up, the longer their parents will live.
一天的深夜我又接到了电话，当我准备出门的时候，睡得昏昏沉沉的老公发话了：这么晚别一个人出去。
Late at night I got one of those calls. As I was getting ready to head out the door, my husband groggily said, "you're not going down there by yourself at this hour."
你总是处在手机、电视或平板电脑这类人造光的环境下，会造成身体褪黑激素量降低，这样就很难睡个好觉，尤其是如果你晚上睡得那么晚。
Exposing yourself to artificial light on your cellphone, TV or tablet reduces your body's production of melatonin, which can make it difficult to get a good night's sleep, if you do so late at night.
每当在头一天晚上我睡得特别晚，第二天早晨坐下来去吃早餐时，我母亲过去总是会对我说“一半夜睡一个小时胜过下半夜睡两小时”之类的话。
An hour before midnight is worth two after or so my mother used to tell me as I sat down to breakfast after a particularly late night.
调查的某些结果显示：43%的美国人表示他们每星期很难得有一晚能睡得好。
Here are some of the findings: 43 percent of Americans say they rarely or never get a good night's sleep during the week.
那一晚，小男孩睡得很香，梦到和绒毛兔一起快乐地玩耍。
That night, the little boy had a sound sleep. He dreamed he played with the rabbit happily.
在我当妈妈以前，我从不担心睡得太晚，想睡多晚就睡多晚；
I slept as late as I wanted and never worried about how late I got into bed.
在我当妈妈以前，我从不担心睡得太晚，想睡多晚就睡多晚；
I slept as late as I wanted and never worried about how late I got into bed.
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