Calcimurite
钙氯石
🗣️ 情景例句
When you understand the cultural background, you can better use the language.
当你了解了文化背景，你就能更好地运用语言。
You can't eat your cake and have it.
不能既要吃饼，又要把饼保存。
When will the contract be ready?
合同何时准备好？