长期以来，研究人员已经了解到：温室气体通过对同温层的冷却作用，可以放慢破坏臭氧层的化学反应速度，因此也许会有助于臭氧层的恢复。

Researchers have long known that greenhouse gases might help the layer recover by cooling the stratosphere, which slows the rates of chemical reactions that destroy ozone.

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在向同温层释放适量的硫化物之后，气温便会回到上升前的水平。

Add the right amount of stratospheric sulphur and the temperature will come back down to where it began.

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它有一个绰号“同温层下的巨人”，但他不再是巨人，它是王牌。

And though it's got a nickname, "Stratosphere giant," it is no longer the giant. It's been trumped.

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