Ferrohydrite
褐铁矿
🗣️ 情景例句
You're right.
你说的对。
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
When a marked bee returned to the hive from the feeding table, Von Frisch watched through the glass.
当一只有记号的蜜蜂从喂食桌回到蜂箱时。