Langbanite
硅酸锰锑铁矿
🗣️ 情景例句
I think I did the right thing
我觉得我做了一件对的事
Slow help is no help.
帮忙不及时，等于不帮忙。
Such things provide an excellent outlet for pent up creative energy,
这些东西为人们潜在的创造力提供了一个绝妙的用武之地。