Heroes are usually alone for a time.

英雄总是在一段时间内独处。

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For a long time space travel was something for heroes.

一次长时间的太空旅行对英雄来说是了不起的。

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For the first time, Americans could see and recognize their heroes.

美国人平生第一次亲眼目睹了他们心目中的英雄。

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For the first time, Americans could see and recognize their heroes.

美国人平生第一次亲眼目睹了他们心目中的英雄。

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