Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

一项研究表明，当你在一个陌生的地方睡觉时，你的半边大脑会保持警觉并做好准备防范危险。

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Additional tasks may be involved for the sake of security, but the overall process stays the same.

由于安全性原因，可能会包括其它任务，但是整个过程是一样的。

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These organisms absorb carbon dioxide from the atmosphere and take it to the bottom of the ocean when they die, where it stays for thousands of years.

我们知道，浮游生物会吸收大气中的二氧化碳，当它们死亡时会把二氧化碳带入洋底，并在那里停留数千年。

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This image of the afterlife is founded on the orthodox figure for eternity. The body stays to the earth while the soul, like the day-star, rises to the sky.

关于来生的这幅画面是建立在正统基督教,对永生的信仰上的，肉体归于泥土,灵魂却会像启明星一样升上天空。

耶鲁公开课 - 弥尔顿课程节选

Your body has elaborate mechanisms for maintaining this state of homeostasis, that is, things staying the same; the body stays the same, homeostasis.

你的身体有许多精妙的机制,来维持内稳态,也就是说体内物质不改变,身体状态不改变,这就是内稳态

耶鲁公开课 - 生物医学工程探索课程节选

And a twenty-four-year-old Milton, after seven years of education, simply decides not to go. Instead of joining the ministry, Milton instead returns home and he stays at home without any means of supporting himself for six years.

而24岁的弥尔顿，在结束了7年的学业之后，却决定不那么做,他反而是回到了家中,在家里呆了6年。

耶鲁公开课 - 弥尔顿课程节选

By a twist of fate, he stays frozen for over fifty years, emerging with enough of his Dudley Do-Right manliness intact to impress single mom Jamie Lee Curtis, her young son Elijah Wood, and even her dull suitor Nicholas Surovy.

NEWYORKER: Forever Young

The economic tests instead may come from the length of this downturn: an America that stays sluggish for several years could cause all sorts of problems.

ECONOMIST: The world economy

On behalf of the American people, I thank you for welcoming those who will come next, as they ensure that our alliance stays strong and ready for the tests of our time.

WHITEHOUSE: President Obama Speaks to the Australian Parliament