Conichalcite
砷钙铜矿
🗣️ 情景例句
But first you have to smile.
但首先你得笑一笑。
I met one of the engineers over at the television station.
我在电视公司遇到一位工程师。
Will you pick me up at my place?
你能到我的住处来接我吗？