Monocarbide
一碳化物
🗣️ 情景例句
Dean Rafer called me today.
Rafer主任今天打电话给我。
Yes, he speaks English perfectly.
是,他能流利地说英语。
Then he gets out of the lift and climbs up to the fifteenth floor on foot.
接着他走出电梯并徒步登上第15层。