Cobaltitite
[建] 辉钴矿
🗣️ 情景例句
No, no. Please, go ahead.
不用 ，不用。你走吧。
What would you like to do this weekend?
这周末你打算做什么？
They had to work inside the ship, cutting away old metal, fixing new metal plates, drilling holes, laying electrical and phone wires and fixing new pipes for water and steam.
他们要在船舱里工作，切掉旧的金属，焊接新的金属板，钻孔，埋电线和电话线以及安装新的水管和蒸汽管。