A hair normally grows from each follicle for about three years, is then shed, and a new hair grows.

一根头发通常从每个毛囊中生长约三年，然后脱落，然后一根新头又生长。

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If you have long hair, you should squeeze the extra water from your hair with a towel.

如果你是长发，你应该用毛巾把头发上多余的水挤出来。

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Apart from the money involved in hair cutting, shaving, trimming, etc., a fortune is spent just on hair products.

除去理发、剃须和修剪等等的费用，人们仅仅在美发产品上就花了一大笔钱。

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Each hair on a person's head grows from a single tube-like hole in the skin called a follicle.

VOA: special.2011.04.05

The bow is made out of, typically, horse hair from the tails of horses.

大多是用马尾的马鬃制成

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So we have like a lot of different products to like, help protect your hair from the sun and water

所以我们有很多产品来，比如，帮助保护头发不受阳光和水的伤害，

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Since the reign of George Steinbrenner, the Yankees have famously prohibited their players from wearing facial hair beyond mustaches, and from growing their hair long.

WSJ: Yankees: No Beards��And That's Final

After three years of research and testing, they invented several new molecules to fight common hair problems, including OFPMA, which shields hair from oil and dirt.

WSJ: How I Built It: Lawyer Takes On Beauty Care

In most big American cities, almost any luxury item can be had for a price real champagne from France, truffles from Italy, and in Los Angeles, human hair from India.

NPR: Indian Hair: The Next Hot Beauty Trend?