度过了漫长的四个昼夜，女孩终于获救了。
只花了一千个昼夜，哈尔和我就装配出了一辆崭新的汽车。
In only a thousand days, Hal and I put together a brand new car.
之所以有昼夜，是因为地球像一个巨大的陀螺一样在旋转。
Day and night occur because the earth is spinning like a huge top.
中的每一个日昼夜夜，祝你欢欢欣喜度新年！
New Year time is here. I hope you have a wonderful New Year. May every day.
在后来的十年里为了偿还这笔借款，我们两个不分昼夜地干活。
During the next ten years we both worked day and night to pay for it.
昼夜节律就是一个很好的例子。
昼夜节律就是一个很好的例子。
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