Fluomethane
氟代甲烷
🗣️ 情景例句
Are we too late for our dinner reservation?
我们会不会错过晚餐订位时间
In good years corn is hay, in ill years straw is corn.
丰年五谷贱如草，荒年稻草贵如粮。
'You'll have to get off here,' the conductor said.
“您得在这里下车，”售票员说，