Mangnotantalite
锰钽铁矿
🗣️ 情景例句
You're welcome.
别客气，欢迎你再来。
Take care of yourself and don't forget to keep in touch.
多多保重。别忘了保持联系。
There's an old teapot over there. Isn't it beautiful! said Ann.
“那儿有一个旧茶壶。它不美丽吗？” 安说