Langite
蓝铜矾
🗣️ 情景例句
We are quite interested in the joint venture.
我们对合资经营很感兴趣。
A scientist has come up with a good idea. That's it!
科学家想起了一个好创意。就是这个！
This company is our regular customer.
这家公司是我们的老客户。