Whitlockite
白磷钙矿[石]
🗣️ 情景例句
Five hundred dollars, please. And could you give me ten dollar in small change?
请换500美元。再另外能否给我10元的小面额零钱？
How long will I have to wait?
我要等候多久呢？
You remember my friend who helped me out?
你还记得曾经帮助我摆脱困境的那位朋友吗？