Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
The advanced exercise class is not so easy, huh?
高级健身班不是那么容易吧， 对不对？
I'll keep that in mind.
我会记住的。
What a boring movie! It's the most boring movie I have ever seen.
这电影真没劲！是我看过最糟糕的电影。