Oligonite
[化] 菱锰铁矿
🗣️ 情景例句
He was very kind.
对人和蔼。
Don't forget to invite him.
不要忘记邀请他。
In fact, I was a bit frightened and didn't know what we should do.
事实上我有点害怕，不知道我们该怎么办。