Becquerelite
深黄铀矿
🗣️ 情景例句
You're a wonderful granddaughter.
真是个好孙女。
How can I get in touch with you?
我要怎样联络你呢？
Oh, hello, Bill. Yes, this is Ann's mother.
噢，你好，比尔。对，我就是安的母亲。