Ectropite
肾硅锰矿
🗣️ 情景例句
When you go to a new school it takes a while to know the ropes.
到一所学校读书要花一段时间熟悉情况。
Yesterday was Sunday.
昨天是星期日。
Pumas are large, cat-like animals which are found in America.
美洲狮是一种体形似猫的大动物，产于美洲。