Chalcomenite
蓝硒铜矿
🗣️ 情景例句
There are other boys and girls here,
还有其他男孩女孩在这儿，
For me, studying in another country is very exciting.
对我来说，到国外留学是一件刺激而又有趣的事。
Quick, turn the gas off. Cover the pan. Be careful!
快，把煤气关上。盖上锅。小心！