我用到“灾难性”一词，是想说二氧化碳比空气质量重，当二氧化碳形成的云层过重，空气锐减，所有下面的人都会窒息而死。
I say "catastrophic" because carbon dioxide is heavier than air, and a ground-hugging cloud would suffocate anyone it enveloped.
阳光温暖的普照着大地，我们在阳光下尽情的吸收来自太阳的力量，空气中弥漫着让人窒息的气味，任何事情都有两面性！
The sun shines warm the earth, we enjoy in the sun to absorb the power from the sun, the air was filled with the smell of people of suffocation, there are two sides to anything!
如果同惰性低温液体有关，存在着空气中氧含量减少，从而导致救火人员窒息的可能性。
If an inert cryogenic liquid is involved, there is the possibility of reducing the oxygen content of the air with the potential risk of asphyxiation of the firefighters.
如果同惰性低温液体有关，存在着空气中氧含量减少，从而导致救火人员窒息的可能性。
If an inert cryogenic liquid is involved, there is the possibility of reducing the oxygen content of the air with the potential risk of asphyxiation of the firefighters.
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