Ekmanite
锰星泥石
🗣️ 情景例句
You remember Charles Maxwell, Grandpa?
你记得Charles Maxwell吗， 爷爷？
Actions speak louder than words.
事实胜于雄辩。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。