Corundume
氧化铝
🗣️ 情景例句
It certainly is. The sun is shining but there's pleasant breeze. It's lovely.
的确不错。阳光明媚，和风宜人。太舒心了。
A fault confessed is half redressed.
承认错误，等于改正一半。
Do you think you'll be able to go to sleep right away?
你认为你马上就能睡着吗？