Oxyfluoride
氟氧化物
🗣️ 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大学的在校生苏珊，请问您贵姓？
The man is surveying land for a national park.
这个人正在测量国家公园的土地
We swam and dived off the rocks into the sea.
我们从岩石上跳进海里游泳。