We expire used air from our lungs.

我们从肺里呼出废气.

辞典例句

Specially developed cowls direct air into the building, and also draw used air out.

一种特制的罩可以将空气导入大楼, 也可以将废气排出大楼.

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In 1997, the Pathfinder Mission used air bags to successfully land on Mars.

一九九七年, 探路者号就用空气袋成功地着陆火星.

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Its widely used air - conditioning, refrigerators, washing machines, computers, household appliances, communications and automobile industry.

其广泛应用于空调 、 冰箱 、 洗衣机 、 电脑等家用电器 、 通讯及汽车工业.

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