Moving greenhouse farming into taller structures within city limits can solve these remaining problems.

把温室农场搬进市内的高层建筑就可以解决这些遗留问题。

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It's the booming capital of fracking with thousands of Wells within city limits. But fracking comes with a cost.

在城市规定的限度内，无数的燃气井轰然作响，但是这么做也是有代价的。

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Spokane enjoys a population of 190,000 within city limits, and more than 400,000 in the greater Spokane area.

斯波坎享有190,000人口的城市范围内，并有40多万在更大斯波坎地区。

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The house is now within the city limits.

VOA: special.2010.05.10

The city of Charlottesville, Virginia, issued a moratorium on the use of drones within city limits.

CNN: Bad laws would hurt good drones

This summer, local microbrewers will band together to open the first large-scale brewery within city limits in more than 30 years.

BBC: Baltimore��s beer flows again

However, while the cities may be internally efficient, the problem doesn't just lie in the stuff that gets consumed within city limits.

CNN: All About: Cities and energy consumption