Marmag
氧化镁
🗣️ 情景例句
Well, can you come fishing with me tomorrow?
那么， 你明天能和我一起去钓鱼吗？
I know the boy whose father is a professor.
我知道那个男孩的父亲是大学教授。
She owes her good health to her regular life.
她把健康归功于规律的生活。