这就是为什么文兹克建议至少埋4英尺深。

That's why Venzke advises burying it at least four feet deep.

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文兹克不是仅有的希望自己的贵金属一直在自己身边的投资者。

Venzke is hardly the only investor who wants his precious metals nearby at all times.

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尼德韦德兹克和司辛格的发现在杂志《白垩纪研究》上面发表了。

Niedzwiedzki and Singer's discovery was reported in the journal Cretaceous Research.

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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

耶鲁公开课 - 生物医学工程探索课程节选

And the Spanish, a much smaller group of people was able to overtake the Aztec civilization, very well established, because that group of people was devastated by the disease.

那些西班牙人,只是一支较小的队伍,他们之所以战胜高度发达的阿兹特克文明,是因为阿兹特克人被这种疾病摧残了

耶鲁公开课 - 生物医学工程探索课程节选

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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