Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
What do you think of the terms of payment?
关于付款条件你们有什么意见？
I recognize that he is more clever than I am.
我承认他比我聪明。
Dad, this is Li Lei. Li Lei, this is my father.
爸爸，这是李磊，李磊，这是我爸爸。