There's some variation depending on hair colour but for an average adult the strand count is 100,000, so losing 100 a day is not too bad.

不同的发色会有不同的变化，但是对于一个普通的成年人来说，头发的数量是10万根，所以每天失去100根也不是太糟糕。

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On two separate morning visits to the scientists' lab, each man walked for an hour at an average speed that, in theory, should allow his body to rely mainly on fat for fuel.

在科学家的实验室里，每个人分别在上午的两次访问中，以平均速度走了一个小时，理论上，他的身体应该主要依靠脂肪作为燃料。

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A study published in the New England Journal of Medicine estimated that there are an average of 30 in-flight medical emergencies on U.S. flights every day.

发表在《新英格兰医学杂志》上的一项研究估计，美国航班上每天平均会发生30起飞行中医疗紧急事件。

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The average college student in America spent an estimated seven hundred dollars on textbooks last year.

VOA: special.2009.09.03

There's no ladder, no differences between CEO and an average engineer on the surface.

没有阶级划分,表面上看来，普通员工和CEO也没有差别。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

The government has also submitted legislation that would increase the excise tax on beer by an average of 50 percent per year from 2010 to 2012.

VOA: standard.2009.10.15

Police say the arrested traders, who mostly come from Bihar, said that 25 to 30 elephants were annually taken out of the state on an average over the past 15 to 20 years.

BBC: India police discover elephant smuggling racket

The study included data on about half of all Andean glaciers and blamed the melting on an average temperature rise of 0.7C from 1950-1994.

BBC: Massive melting of Andes glaciers

The upward revision made to Chinese oil demand in 2010, on an average across the main forecasts, totaled some 600, 000 barrels per day since the start of last year.

FORBES: Slowdown? China Oil Demand Up 15%, Gasoline Demand Breaks Record