Alunogen
[化] 水硫酸铝石
🗣️ 情景例句
OK, Susan.
好的，Susan
It's essential to choose the right means of transportation.
选择合适的运输方式很重要。
One of Mary's prize possessions was a little white lamb which her husband had given her.
玛丽最珍贵的财产之一就是丈夫送给她的一只白色小羔羊。