酸素

Noun

 * 1)  oxygen
 * 2)  oxygen mask
 * 1)  oxygen mask
 * 1)  oxygen mask

Etymology
From,. Compare 🇨🇬, 🇨🇬, 🇨🇬. in his book 遠西医方名物考補遺 (“酸素”).

Noun

 * 1) oxygen
 * 2) oxygen