Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
Lots of movie houses, and the theater.
很多电影院 还有剧院。
Take the world as one finds it.
听之任之。
There was a murder in London yesterday.
昨天伦敦发生了一起谋杀案。