Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
Was it serious?
病得很重吗？
Who is the greatest playwrighter of our times?
谁是当代最伟大的剧作家？
'Will you be spending your holidays abroad this year?' I asked.
“您今年去国外度假吗？”我又问。