Flikite
褐砷锰矿
🗣️ 情景例句
Good work, gang.
做得很好 ，大伙儿们。
My brother came in,changed his clothes,and went out again.
我的兄弟进来了，换掉了他的衣服，并再去外面了。
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。