Fluor
n. [矿]氟石
✅ 同义词
🗣️ 情景例句
Well, it's too bad that you have to go.
真遗憾，你要走了。
To research the graph
研究曲线图
John Dewey has said in all seriousness that the part played by custom in shaping the behaviour of the individual,as against any way in which he can affect traditional custom,
风俗在形成个人行为方面所起的作用和一个对风俗的任何影响相比，