Dehrnite
碱磷灰石
🗣️ 情景例句
Sir, I thought this was an emergency.
先生，我想这是一位急病患者。
You should wear a lightweight suit, It's hot today.
你应该穿一套薄一点的套装，因为今天很热。
Our school covers 100 square meters.
我们学校占地面积平方米。