我们需要睡眠来保持活力。
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？
你究竟需要多少睡眠时间？
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。
Although we all need sleep, just a few people think about how to get sleep and why should we.
虽然我们都需要睡眠。大多数人很少考虑他们是如何睡眠的，他们为何要睡眠。
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。
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。
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？
我要去睡觉了。
Sleep is, after all, a very basic need.
毕竟，睡眠是十分基本的需求。
So how much sleep do you need?
那么你需要多少睡眠时间呢？
I do not usually need much sleep.
我通常不需要很多的睡眠。
我们为什么需要最佳的睡眠？
How to tell how much sleep you need?
如何判断你需要多长时间的睡眠？
You need more sleep with the Sun so far from your sign.
太阳远离水瓶座，所以你需要更多的睡眠。
There are a few theories as to why we need so much sleep.
关于为什么我们需要这么多睡眠有一些理论。
There are a few theories as to why we need so much sleep.
关于为什么我们需要这么多睡眠有一些理论。
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