‐‐像這個綠色的礦石。&rdo;
&ldo;它最終會變成綠色的顏料，同樣一種顏料，畫在人工製造的紙上，和畫在普通的紙張上，由於普通紙張中含有漂白劑，和顏料發生化學反應，會導致最終的顏色變得不夠純正。
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