Underwater cities will provide more space.

水下城市将提供更多的空间。

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Filmmakers of an earlier era had a better idea: underwater cities!

早期的电影制作人有过更好的点子：水底之城！

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The glorious vista feature floating and underwater cities, 3D-printed homes and even animals grazing on top of skyscrapers.

在他们的想象里，未来非常精彩。城市可漂浮在海面上，也可藏于水下；房子可以用3D打印机打印出来，动物可以在摩天大楼上牧养。

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Louis and Cleveland, were better able to stave off foreclosures. (Although, state policies play a major part in discrepancies across cities.) Homeowners in these cities faced lower borrowing costs and fewer underwater mortgages.

FORBES: Obama Rental Plan May Work In Some Cities, But Not In All of Them