Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
I don't care how much I have to study. I have to pass this exam.
我不介意要学多少东西。我必须得通过考试。
It was not very wise of you to sell the property.
你把物业卖了可不是办法。
Ah, yes, I remember now.
啊，是的，我现在记起来了。