Retgersite
n. [矿]镍矾( 一种由含水硫酸镍组成的深翠绿色四方晶系矿物)
🗣️ 情景例句
You're welcome.
不用谢
He has bought 10 tractors for the village.
他为村里买了10台拖拉机。
Well, what else did you hear about at the meeting?
喂，在会上你还听到了别的什么吗？