Hamartite
氟碳酸铈矿
🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
Your unit price seems fair enough, but we're hoping for a higher discount rate.
单价似乎合理，但我们希望给予更高的折扣率。
Yes, it is.
是啊。