Walkerite
镁针钠钙石
🗣️ 情景例句
His daughter is sick.
他女儿生病了。
I'll finish working at 5:30 and get home by 6 o'clock.
我希望在5:30完成工作并且在6点钟回家。
Our village is in a valley.
我们的村庄坐落在一个山谷之中。