The researchers believe that brief bursts of electrical activity in this area, called "sleep spindles", somehow block external sounds form reaching any parts of the brain that might wake a person up.

这个课题的研究人员们相信，在这个区域内简短的突发性电子活动“睡眠梭形波”，在用某种方式阻挡了外界声音信号传输到大脑中某些能让人醒过来的某些区域。

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Each day begins with a wake-up call-usually in musical form, and often with a recorded greeting from the artist.

每天早晨都会有音乐叫大家起床，居多是艺术家录制的问候。

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Suppose you wake up one morning and have a lot of blog post ideas. Just drop them all in Assess, in raw form.

假设你在某天早晨醒来，脑中浮现一堆堆博文的主题，那么就把这些原始的素材丢进想法之水桶里吧。

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Great necessities call out great virtues ... qualities which would otherwise lay dormant wake into life and form the character of the hero and the statesman.

CNN: Boston never surrenders

You would probably see a second attempt to form a national government in the wake of a controlled default, uncontrolled would almost certainly lead to a snap election.

BBC: What might a Greek default look like?

More generally, Iranian calls to form a gas cartel are useful for Russia as they serve to put pressure on European states that, in the wake of gas and oil supply disruptions over the past 13 months, are having second thoughts about deepening their dependence on Gazprom.

ECONOMIST: Don't worry, there won't be an effective gas cartel