Everybody sleeps, but what people stay up late to catch—or wake up early in order not to miss—varies by culture.

每个人都要睡觉，但是人们为了不错过什么而熬夜或早起，在不同的文化中是不一样的。

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According to the plan, teachers should not allow their classes to run too late or too early.

根据该计划，教师不应该太早上课或太晚下课。

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Many economists say that may not happen until late this year or early next year.

许多经济学家说，在今年底或明年初之前，利率不太可能提高。

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That means that if things continued we could get roaring multi-family construction but it would not be until late this year or early next.

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They like to see employees arriving early and staying late, not taking their holidays or if they do, contacting the office or doing their e-mails while on holiday.

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In rich countries the average woman goes through the menopause at the age of 50, but it is not unusual for it to happen as early as 42 or as late as 58.

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