Coltan
钶钽铁矿
🗣️ 情景例句
It has been a learning experience. That's true.
这真是一次学习经验， 真的。
Too much spoils, too little is nothing.
过多反坏事，太少不济时。
It is no use doing what you like; you have got to like what you do.
干你所喜欢的事是没有用的，你得喜欢你所干的事。