Ferrohydrite
褐铁矿
🗣️ 情景例句
Well, forty-seven, to be exact.
准确点说， 四十七年。
I will take a train.
我将去搭火车。
We chose a big one. It is almost as tall as the room.
我们选了一棵大的。它几乎和房间一样高。