Preoxygenation
[医] 预充氧[呼吸]法
🗣️ 情景例句
He is quick-witted.
他反应灵敏。
To sing a song
唱歌
Bill works harder than Joe and grows more flowers and vegetables, but Joe's garden is more interesting.
他比乔也更为勤奋，种植的花卉和蔬菜也更多，但乔的花园更富有情趣。