慢速英语:阿富汗的年轻工程师用汽车零件制造呼吸机

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ventilator – n. a machine that forces air into the lungs of a sick patient to keep them breathing

mission – n. an important effort or job

proud – adj. much pleased; feeling very good about someone or something

battery – n. an object that provides electricity for things

pandemic – n. the spread of an infectious disease over a large area in a short period of time