Plancheite
纤硅铜矿
🗣️ 情景例句
In the Spring and Autumn period, copper and iron chopsticks came into being.
在春秋时代又出现了铜制和铁制的筷子。
Don't let me down.
不要让我失望。
Will you travel by sea or air?
你们乘船去，还是乘飞机去？