We're locked into it not just by day and night-there's the master timepiece in the brain called the circadian clock.

我们不仅按照昼夜的交替生活，而且还受大脑里的生物钟的支配。

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Humans are pegged to a 24-hour cycle. We're locked into it not just by day and night-there's the master timepiece in the brain called the circadian clock.

人类的生活周期是24小时，这个周期的形成不只是因为有白天和黑夜，它还与人脑内主要的计时器昼夜节律钟有关。

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On the morning I wake naturally, for I will have set no clock, nor informed my body timepiece when it should alarm.

第二天早上我自然醒来，因为我没设闹钟，也没给我的身体任何时间的暗示。

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Hunt and I spoke in Cambridge, at Trinity College, where he is a professor of engineering and the Keeper of the Trinity College clock, a renowned timepiece that gains or loses less than a second a month.

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The price breaks not only the previous record for the renowned eggs, of which around 60 are thought to have ever been made, but also for Russian artwork, excluding paintings, and for any timepiece, clock or a watch.

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The first Astronomer Royal, John Flamsteed, compiled the most accurate star catalogue of his day as part of this attempt (though the solution was eventually provided by John Harrison, a clock maker who designed a timepiece that was robust enough to withstand the rigours of sea travel, and was thus able to substitute for the stars in the relevant calculations).

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