红钻和绿钻是最珍贵的，与人造的白色钻石不同，它们只在世界上的一两个地区出产，因此数量有限。
Red and green are the rarest, and unlike white, man-made diamonds, are finite as they are only found in one or two areas in the world.
他梦见自己走进了岩洞，只见绿玉铺地，红玉筑墙，洞顶闪闪发光，挂满了金刚钻凝成的钟乳石。
He ascended into grottos paved with emeralds, with panels of rubies, and the roof glowing with diamond stalactites.
他梦见自己走进了岩洞，只见绿玉铺地，红玉筑墙，洞顶闪闪发光，挂满了金刚钻凝成的钟乳石。
He ascended into grottos paved with emeralds, with panels of rubies, and the roof glowing with diamond stalactites.
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