名词
中文翻译：死气
同义词：
['lifeless air', 'lifeless atmosphere', 'lifeless environment']
例句：
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1. The roomwas filled with dead air after the fire destroyed everything.
火灾过后，房间充满了死气。
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2.The old building had a lot of dead air in it, making it difficult to breathe.
这座旧建筑里有很多死气，让人难以呼吸。
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3. The garden was full of dead air, and it felt stale and dull.
花园里满是死气，感觉沉闷而乏味。