Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
you can pay the mortgage every month.
你们能每月按时付款。
Could you change my flight date from London to Tokyo?
请你更改一下从伦敦到东京的班机日期好吗？
Yes. It sounded like a train that was going under my house.
是的。这响声听起来像是一列火车在从我的房子下面驶过。