Corundum
n. 刚玉, 金刚砂\\n[化] 刚玉
✅ 同义词
📖 牛津释义
corundum
n[U]
hard crystallized mineral used chiefly in abrasives, or in powder form for polishing 刚玉; 刚石; 金刚砂.
🏥 医学释义
金刚砂，刚玉
🗣️ 情景例句
As soon as he left his table.
他刚离开桌子。
The hippopotamus is sleeping.
河马在呼呼大睡。
Then the Class 2 runner dropped his stick on the ground when he was passing it on to the fourth runner.
忽然2班的运动员在传棒给第四个运动员时，把棒弄掉到了地上。