形容词
中文翻译：空气的
同义词：
['airborne', 'aerial', 'aerodynamic']
例句：
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1. The pneumatictire is designed for vehicles that need totravel long distances.
这种充气轮胎是为需要长途行驶的车辆设计的。
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2. The pneumatic tyre has becomean essential part of modern transportation.
这种充气轮胎已成为现代交通不可或缺的一部分。
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3. The pneumatic system in the car helpsto reduce fuel consumption and emissions.
汽车中的气密系统有助于减少燃油消耗和排放。