Artificial intelligent assistant

carat

carat
/ˈkærət; `kærət/ n
(abbr 缩写 ct)
1 unit of weight (200 milligrams) for precious stones 克拉(宝石重量单位, 等於200毫克).
2 (US karat) unit of measurement of the purity of gold (pure gold being 24 carats) 开(黄金纯度单位, 纯金为24开)
    a 20-carat gold ring20开的金戒指
    a ring of 20 carats 20开的戒指.

牛津英汉双解词典

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