Miesite
褐磷氯鉛礦
??? 情景例句
What's the problem, Richard?
有什么問題嗎 Richard
Care and diligence bring luck.
謹慎和勤奮，帶來好運氣。
We'll need all our orders packed that way from now on.
今后我們所有的貨都要照樣包裝。