Corundume
氧化铝
🗣️ 情景例句
Yes. Here's the survey report issued by the Health Office, which is absolutely reliable.
有。这是由卫生检疫所签发的检验报告，它是绝对可靠的。
Who holds the purse rules the house.
钱可神通。
Aeroplanes are slowly driving me mad.
飞机正在逐渐把我逼疯。