Mitchellite
镁铬铁矿
🗣️ 情景例句
Yes, but I don't know where to start.
是的 ，但我不知道从何说起。
I'll consider this matter.
我会考虑这件事的。
The sea bed was scoured with powerful nets and there was tremendous excitement on board went a chest was raised from the bottom.
他们用结实的网把海床搜索了一遍。