单词	green gold
释义	green gold noun : an alloy of 14 to 18 karat gold that is greenish in color and employs either silver or silver plus cadmium or zinc as the alloying metal Word History First Known Use 1697, in the meaning defined above
随便看	burp burp gun burped burpee burpees burping burps burqa burr burr artichoke burr clover burr marigold burr medic burr mill burr oak burra burrage Burrard Inlet burrawang burrawangs burrawongs burred burrels burrer burrers

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