Alumina
n. 矾土\\n[化] 矾土; 氧化铝
🗣️ 情景例句
What does that mean when he goes,
他发出的声音代表什么意思
We have known each other for 6 years.
我们认识有六年了。
Not only did I know her, but I was her best friend.
我不仅认识她，还是她最好的朋友。