Oligonite
[化] 菱锰铁矿
🗣️ 情景例句
In fact, I'd like your autograph.
事实上 我想要你的签名。
Self-distrust is the cause of most of our failure.
我们的失败多数是由于缺乏自信。
the total absence of fishing boats around the oil rigs.
钻井平台周围根本没有捕鱼船只。