Alumina
n. 矾土\\n[化] 矾土; 氧化铝
🗣️ 情景例句
I didn't quite catch your name.
对不起，我没听清楚你的名字。
Mr. Jones spent his undergraduate days at Columbia.
琼斯先生在哥伦比亚大学渡过了他的大学时代。
As I soon learnt, he was English himself!'
我很快了解到，他自己就是个英国人！