They're evidence of extraterrestrial visitation, time travelers or lost civilizations like Atlantis - or perhaps they're here to show us that some ancient peoples were far more advanced than we think.

它们是地外文明来访、时间旅行者或者遗失文明如阿特兰蒂斯的证据——又或许是某些比我们想象还要先进的史前人类展示给我们的东西。

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As long as we disturb soil on any kind of scale beyond the backyard garden, no matter how good our intentions, we will follow the path of all lost civilizations.

不论初衷有多好，只要破坏后花园外的任一寸土地，我们都将重蹈逝去先人的覆辙。

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Some scientists think that new technology has placed us on the verge of uncovering dozens of formerly lost civilizations.

有些科学家认为新技术可以让我们迅速找到十几种消逝的文明。

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"Keep in mind that he comes out of the tradition of (French author) Jules Verne, whose characters are always traveling around the world and finding lost civilizations and incredible ruins, " he continued.

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Ancient civilizations, and cracking the code of long-lost languages is usually the reserve of Hollywood, or a good old-fashioned book.

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