Fluohydrocarbon
氟代烃
🗣️ 情景例句
Is it possible that we forgot to buy cinnamon?
是不是我们忘了买肉桂？
He who has done ill once will do it again.
干了一次坏事的人会再干第二次。
One of the most handsome cars was a Rolls-Royce Silver Ghost.
最漂亮的汽车之一是罗尔斯--罗伊斯生产的银鬼汽车，