Hydrocyanite
[矿]铜靛石, 铜矾
🗣️ 情景例句
Fine. How much would you like to exchange, sir?
好的。您要兑换多少呢，先生？
I would like to call a plumber to come this afternoon.
我要叫一个水管工人今天下午来。
Is this a book?
这是一本书吗？