There are fundamental public health problems, like dirty hands instead of a soap habit, that remain killers only because we can't figure out how to change people's habits.

一些基本的公共卫生问题，例如脏手而不是肥皂习惯，仍然是棘手的问题，仅仅因为我们无法弄清怎么去改变人们的习惯。

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You'll still do it, but because it's a habit, you only have to use minimal focus to maintain that habit.

你会一直地做下去，因为那已经变成了习惯。你只需要用很少的精力保持那个习惯就可以了。

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"Texting and tweeting have affected the way people write, but it's only partly because of the habit of using abbreviations and sentence fragments, " Lamb observes.

短信和Twitter的流行改变了人们的写作方式，但也只是导致人们滥用缩略语和残缺句的部分原因。

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