There are several species of copper butterfly, many of which have copper-coloured wings.

有几种铜色蝶，它们有青铜色的翅膀。

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Copper ores are generally brightly coloured minerals which would be attractive as applied decoration.

铜矿石是一种通常具有鲜艳颜色的矿物。

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Instead of the usual white ceramic tiles and bright fluorescent lights that give other Paris Metro stops the surreal glow of a subterranean hospital, the entire vault here is covered with dark, copper-coloured panels joined by oversized rivets.

BBC: Paris, the inside story