Doing sports can help you sleep deeply.
做运动可以帮你睡得沉。
The ducks in the middle sleep deeply with both eyes closed.
中间的鸭子闭着双眼酣睡着。
But why should they sleep deeply at all?
但是动物为什么要进入深度睡眠呢？
This will help them sleep deeply and peacefully.
这将帮助他们睡得很沉，很安详。
The heaviness of his heart caused him to sleep deeply.
他心情忧郁，就沉沉入睡了。
The darker the room, the easier it is to sleep deeply.
房间越漆黑，深度睡眠就越容易。
They sleep very deeply, and need little or no food.
他们睡得很沉，几乎不需要进食。
The researchers found women were more refreshed than men even when they slept the same number of hours and so concluded they must sleep more deeply.
研究人员们还发现，女性和男性睡眠时间相同的情况下，她们的精力会更充沛，由此推论，女性的睡眠要比男性深。
If you stay inactive, this body temperature pattern will lead to poor sleep, which will prevent you from sleeping deeply.
如果你处于不活跃状态，身体的温度场会导致睡眠不佳，这就会妨碍你进入深层睡眠。
Luckily, my roommate Weiping did not sleep in the room with me, or my cough might have deeply disturbed him.
很庆幸我的舍友伟平昨晚没有回来睡，否则我怕我的咳嗽声会让他一夜无眠。
Insufficient sleep, for example, deeply impairs our ability to consolidate and stabilize learning that occurs during the waking day.
比如，我们在清醒的时候能够巩固和牢记学到的东西，但睡眠不足会破坏我们的这种能力。
Also, older people often sleep less deeply and wake up more often throughout the night, which may be why they may nap more often during the daytime.
同时，年纪大的人常常睡不沉，夜里时常醒来，这可能使他们白天经常打瞌睡的原因。
Alcohol may make you feel sleepy, but it keeps you out of that deeply restorative stage of sleep.
酒精会使人困倦，但是不利于睡眠阶段的精神复元。
We sleep more deeply when we are young, because we have a high metabolic rate that is greatly reduced during sleep, but also because there are people to protect us.
我们在年少时睡得更深，这是因为当时我们有很高的代谢速率，而睡眠能大大降低之。但同样也因为有人可以保护我们。
Some doctors prescribe Clonazepam, a benzodiazepine, to help people sleep more deeply.
一些医生开出氯硝安定(一种苯二氮)来帮助人们睡得更深。
Exercise helps you fall asleep more easily and sleep more deeply. The Big Man really notices this in himself.
锻炼能帮助你更容易睡眠、更多深度睡眠。大男人的确在自己身上注意到了这点。
Rest deeply. Get enough sleep.
好好休息。保持充足的睡眠。
I cannot believe I could sleep that deeply.
我不相信自己能睡得那么沉。
Scientists first spotted them in the 1930s, but they didn't suspect they were involved in how deeply people sleep.
科学家首次在19世纪30年代发现，但是一直没有想到纺锤波可能跟人的睡眠深浅程度相关。
Scientists first spotted them in the 1930s, but they didn't suspect they were involved in how deeply people sleep.
科学家首次在19世纪30年代发现，但是一直没有想到纺锤波可能跟人的睡眠深浅程度相关。
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