And so there are famous reports of how the Aztecs, that whole civilization, was devastated by smallpox.

有报道说阿兹特克文明如何发达,但这整个文明,都毁灭于天花

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We had civilizations-- Aztecs, Mayas, Incas, etc.-- but no wheeled vehicles.

在各个文明中-,例如阿兹台克，玛雅，印加-,都没有轮式交通工具的踪影。

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