空地的规模史无前例，它们将大量的二氧化碳气体释放到了大气中，因而引发了第一次人为导致的全球变暖。

The unprecedented land clearance released vast quantities of carbon dioxide into the atmosphere, triggering for the first time humanly caused global warming.

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紫外线能够加热黑云的边缘，将气体释放到周围的宇宙空间里。

Ultraviolet light heats the edges of the dark cloud, releasing gas into the relatively empty region of surrounding space.

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他必须实施奥巴马在选举时的承诺，到2050年要减少温室气体释放量在1990年时的80%。

He has to implement election promises made by Obama to cut greenhouse-gas emissions by 80% from 1990 levels by 2050.

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And if you put this in the well-ventilated area, if you prepare this outside, the h c n gas will actually be released into the air, so you're safe, you can eat it later.

而如果你把它们放在通风良好的地方，在室外处理，那么氰化氢气体,将会被释放到空气中，这样你就安全了，过后就可以吃了。

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