Hellandite
钙铒钇石
🗣️ 情景例句
I want to buy an engagement ring for my fiancée.
我想为我的未婚妻买一枚订婚戒指。
Please slow down.
请慢一点。
I could not catch your question. Could you repeat it, please?
我没听清楚你们的问题，你能重复一次吗？