No. 4,229 in Chinese
大气层
Atmosphere.
In a sentence
大气层保护地球免受外层空间的辐射。
The atmosphere protects Earth from outer space radiation.
In this sentence, 大气层 is used scientifically to refer to the Earth's atmospheric layer.
飞机在大气层中飞行时需要克服空气阻力。
Airplanes must overcome air resistance when flying in the atmosphere.
Here, 大气层 refers to the atmospheric domain closer to Earth's surface, emphasizing its role in aviation.
如果没有大气层，地球将无法支持生命。
Without the atmosphere, Earth would not be able to support life.
This usage highlights the essential role of 大气层 as a life-sustaining layer necessary for survival.
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