Naumannite
硒银矿
🗣️ 情景例句
Well, they didn't say anything for sure.
嗯， 他们没有任何确切的答覆。
I like to peel apples for my sweetheart.
我喜欢为自己的心上人削苹果皮。
He made the first telephone.
他发明了第一部电话。