Pickeringite
镁明矾
🗣️ 情景例句
I heard that you get vitamin D from sunshine, and that you soak it like a sponge.
我听说人们像海绵一样从阳光中摄入维生素D。
My sister is the oldest.
我的姐姐是最大。
Excuse me, Han Meimei. I can't find the broom. Can you see it?
我找不到扫帚了，韩梅梅，你看见了吗？