You know him better as the first human to step onto the surface of the moon, but in 1960, Neil Armstrong was a test pilot for NASA.

你知道他更好地为人类第一次踏上了月球表面，但在1960年，尼尔阿姆斯特朗是美国航空航天局的试飞员。

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You know him better as the first human to step onto the surface of the moon, but in 1960, Neil Armstrong was a test pilot for NASA.

你知道他更好地为人类第一次踏上了月球表面，但在1960年，尼尔阿姆斯特朗是美国航空航天局的试飞员。

youdao