形容词
中文翻译：空气的
同义词：
['airborne', 'aerial', 'aerodynamic例句：1. The pneumatic tire is lighter and more durable than the traditional tire.（这种充气轮胎比传统轮胎更轻、更耐用。）']
例句：
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1. The pneumatic tire is lighter and more durable than the traditional tire.
这种充气轮胎比传统轮胎更轻、更耐用。
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2.The aircraft used in this test is pneumatic.
这次测试中使用的飞机是气动的。
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3.The pneumatic pump has been designed to be easy to use and maintain.
这种气动泵设计得易于使用和维护。