Beresowite
[机] 碳铬铅矿
🗣️ 情景例句
What was your best subject in college?
大学时你哪门功课最好？
He has left already .
他已经离开了。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。