respiratorn.
英 'respɪreɪtə | 美 'rɛspəretɚ
中文n. 口罩；[医] 呼吸器；防毒面具
词根词源
respirator (n.)1836, as an aid to breathing (originally a sort of gauze mask, agent noun from respire. As "machine to provide artificial respiration" from 1929.
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