Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
and there's one person I haven't photographed in a long time.
而有一个人我已经很久没为她拍照了。
Don't get mad. It's not worth it.
不值得为这点小事生气。
That would be a waste of money. What's your opinion?
那就浪费钱了。你的意见呢？