形容词
中文翻译：无气的
同义词：
['vacuum', 'devoid of air例句：1. The room was airless and the temperature dropped rapidly.（房间是真空的，温度迅速下降。）']
例句：
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1. The room was airless and the temperature dropped rapidly.
房间是真空的，温度迅速下降。
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2. The vacuum cleaner sucked up all the dust and dirt.
吸尘器吸走了所有的灰尘和污垢。
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3.The spacecraft was airless and had to rely on its own oxygen supply.
宇宙飞船是真空的，必须依赖自己的氧气供应。