Stanfieldite
陨磷钙镁石
🗣️ 情景例句
Tom gave Helen an apple in exchange for a piece of cake.
汤姆用一个苹果和海沦换一块蛋糕。
I'm the luckiest person in my class.
我是我的班级中最幸运的人。
We can offer a 10% discount for orders over 10000 pieces.
订购一万个以上，我们可以打九折。