Chalcotrichite
毛赤铜矿
🗣️ 情景例句
We urgently need to establish our own credit system.
我们期待建立我们自己的信用机制。
In for a penny,in for a pound.
做事一开头，就要做到底；一不做，二不休。
Why? One difficulty is to construct the agreements.
为什么呢？困难之一是起草这些协议。