Margaret Thatcher was also said to get by on four hours a night, while the 130-hour workweeks endured by tech heads has been held up as key to their success.

据说，玛格丽特·撒切尔每晚只睡4个小时，而技术负责人每周工作130个小时，这一工作时长是他们成功的关键。

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Helping your baby learn to tell day from night is a key first step to getting into a workable routine.

帮你的宝宝分清白天黑夜，是形成切实可行的作息规律的关键第一步。

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The key is to do it consistently, say, each night after dinner.

关键是要持之以恒，比如，每天晚餐后。

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And it got powder burned the night Francis Scott Key sat watching it, Writing 'Say Can You See.'

VOA: special.2010.07.02

Special teams were key all night as New York failed on all three power plays it had and killed only one of two against.

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It added it now had to direct an additional 12, 000 police officer hours per year to key areas to control night-time crime.

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It's partly to take advantage of the network's massive Summer Olympics promotional platform (as well as Sunday Night Football, which is a key player in the network's performance), and partly to avoid the competition.

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