Alundum
n. 人造刚玉的商标
🔁 扩展释义
【化】 刚铝石; 铝氧粉【医】 钢铝石
🗣️ 情景例句
When and what university did you graduate from?
你何时从哪所大学毕业？
May I speak to Mr. Johnson, please?
我想请约翰先生听电话好吗？
What were their names?
他们叫什么？