Well, for one thing, they're in an area that is completely inhospitable to man - no civilization is ever known to have lived there.

是的，关键在于这根铁管出现在一个完全不适合人类居住的地区——未曾在当地发现过文明存在的痕迹。

youdao

Civilization is the process of setting man free from men.

文明是人类摆脱人类社会的进程。

youdao

Civilization is to make cultured man.

文明就是要造就有修养的人。

youdao

Civilization is the process of setting man free from men.

FORBES: The "On Your Own" Economy

If you want my wild guess on the next great world civilization, I say don't look East young man, nor West, but rather south to Africa.

FORBES

Elated by even a sad, empty outpost of civilization, I stopped at the creepy little market with unstocked shelves and a dentally deficient man at the register.

WSJ: Merrill Markoe on a Dark and Lonely Road Trip | Traveler's Tale