Skyscraper was once a purely American phenomenon.

摩天楼曾经是美国独有的现象。

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Flirting is a purely American custom, it doesn't exist here.

调情卖俏纯粹是美国人的习惯，这里完全行不通。

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The writer O. Henry called it the one day that is purely American.

作家欧·亨利把这一天称为“清美国式”的节日。

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But experts do agree that the word is purely American.

VOA: special.2010.02.28

One of the most important innovations was the purely American idea of requiring all children to go to school.

FORBES: Magazine Article

For purely selfish American reasons, the answer is yes.

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Maria, though, seems to idolize her younger American relative, purely and simply because he is family.

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