Bayldonite
[化] 钒酸铅矿
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
Thank you but this is something I have to do on my own.
但有些事情我必须自己做主。
Here's my signature.
我签好了。