我需要睡眠，你也一样。
你不需要睡觉。
I don't need sleep. I need answers.
我不要睡觉。我要答案。
你为什么需要睡觉？
为什么我们需要睡眠？
为什么我们需要睡觉？
我也不需要。
我需要睡眠。
We don't know why we need sleep but we regain our vigor after sleep.
我们不知道自己为什么要睡觉，可是我们睡了之后精神就恢复了。
We need sleep (even just a nap) to move anything we've recently learned into our brain's long term storage.
我们需要睡眠(哪怕只是打盹)将最新学习的东西转换到大脑的长期储存中。
One theory for why we need sleep is that our brains use the opportunity to consolidate memories from that day.
关于为什么人类需要睡眠的一个理论是，我们的大脑利用这个机会整合一天的记忆。
It's ironic that the time in our life when we need sleep the most is the time when we're most tempted to skimp on sleep. Adequate sleep is essential for college students.
非常讽刺的是在我们的生命中我们用来睡觉的大多数时间都是从我们本来应该的睡眠时间中节省下来的。充足的睡眠对大学生来说是十分重要的。
The need for sleep varies considerably from person to person.
不同的人对睡眠的需要差异相当大。
It's definitely a myth that older people need less sleep.
老年人需要更少的睡眠，这绝对是一个荒诞的说法。
They sleep very deeply, and need little or no food.
他们睡得很沉，几乎不需要进食。
When you sleep through the alarm or simply need an extra 10 minutes, you can just pluck it off the hanger and go.
当你睡着一直没听见闹钟，或者只是需要多睡10分钟的时候，你可以把闹钟从衣架上拿下来就走。
If you are going to sleep, you need yo put on your pajamas.
如果你要睡觉的话，那就把睡衣穿上。
These results suggest that if a business wants to prosper, it should hire only people who need less than 6 hours of sleep per night.
这些结果表明，如果一个企业想要成功，它应该只雇佣每晚睡眠时间少于6小时的人。
I find that I need very little sleep these days.
我觉得我现在需要的睡眠很少。
I need a decent night's sleep.
我需要好好地睡上一夜。
我得睡一会儿。
I need more time to sleep on it. It's a big decision and I want to make the right one.
我需要更多的时间再考虑一下。这是个重大的决定，我想做出正确的决定。
Can we train ourselves to need less sleep?
我们可以训练自己不需要那么多睡眠吗？
In our society, you're considered dynamic if you say you only need 5.5 hours' sleep.
在我们的社会，如果你说你只需要5个半小时的睡眠，人们就会认为你很有活力。
我要去睡觉了。
In places like Bali and New Guinea, people tend to slip in and out of sleep as they need it, napping more during the day, and getting up more at night.
在有些地方，例如巴厘岛和新几内亚，人们喜欢随时根据需要进入睡眠和醒来，白天时不时的打个盹儿，晚上却经常的爬起来不睡觉。
That suggests that catch-up sleep may undo some but not all of the damage that sleep deprivation causes, which is encouraging, given how many adults don't get the hours they need each night.
这表明补觉可以弥补部分但不是全部睡眠缺乏造成的损害，考虑到有很多成年人每晚都没有得到他们所需的睡眠时间，这令人鼓舞。
Sleep is, after all, a very basic need.
毕竟，睡眠是十分基本的需求。
To prepare for this before winter, these animals eat extra food to become fat which gives them the energy they need while they sleep.
为了在入冬前做好准备，这些动物会吃更多的食物来增肥，从而获取睡眠时所需的热量。
To prepare for this before winter, these animals eat extra food to become fat which gives them the energy they need while they sleep.
为了在入冬前做好准备，这些动物会吃更多的食物来增肥，从而获取睡眠时所需的热量。
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