Canfieldite
硫银锡矿
🗣️ 情景例句
His family is a nuclear family with three generations living together under one roof.
他的家庭是三代同堂住在同一屋檐下。
We need skilled electricians.
我们需要有技术的电工。
so you're telling me that the situation here is bad for black people.
那么，你是说这里的情况对黑人来说是很糟了。