Monofluoride
一氟化物
🗣️ 情景例句
One o'clock.
一点钟。
Don't be shy, dear.
亲爱的，你别害羞嘛。
Suddenly, a middle-age lady got on the train and sat opposite Sally.
突然，一个中年妇女上了火车，坐在萨莉的对面。