Corindon
(=corivendum)刚玉
✅ 同义词
🗣️ 情景例句
That sounds like a good idea.
似乎是个好主意。
Be prepared to put one's hand in one's pocket.
准备慷慨解囊。
It cuts a clean cylinder of rock,
这种钻头能切割一段光滑的圆柱形岩石，