She had to wear a breathing mask in the hospital.

她在医院里必须戴呼吸面罩。

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They die in 30 seconds without a breathing mask.

在没有呼吸面罩的情况下不到30秒他们便会死掉。

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Quaritch stares at him through his breathing mask.

夸里奇透过他的呼吸面罩盯着他。

youdao

To cope with air pollution in China, artist Matt Hope produced a "Breathing Bike, " that consists of a fighter pilot's breathing mask attached to a pedal-powered air filtration system.

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Finally, we caught wind of an innovative breathing mask that filters CO2 from the air, converts it into energy, and stores it to power a cellphone or portable music player.

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We at She Negotiates see moving high potential and high-powered women into greater positions of greater responsibility and leadership as tantamount to the airline injunction to put your breathing mask over your own nose and mouth before you turn to put masks on your children.

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