Perite
氯氧鉍鉛礦
??? 情景例句
Christmas is coming up. Zhao Ming, let me ask you a question.
圣誕節快到了，趙明，我問你個問題。
Stick to it, and you'll succeed.
只要人有恒，萬事都能成。
She spent a lot of money on books.
她花了很多錢來買書。