Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
Don't expect too much of me.
不要对我期望太大。
Good morning, dear.
早，亲爱的。
The editor at once sent the journalist a fax instructing him find out the exact number of steps and the height of the wall.
”编辑立即给那位记者发去传真，要求他核实一下台阶的确切数字和围墙的高度。