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1·Within them, fire hydrants, truck tires, shattered plate glass, condominia, and office buildings may remain indefinitely, but as far from sight as the Carboniferous Formation once was.

消防栓、汽车轮胎、破破烂烂的厚玻璃板和办公大楼或许能够苟延残喘，不过，它们会像石炭层一般埋入地下。