karat

相關對話：

1. A unit of measure for the fineness of gold, equal to!/24 part. Pure gold is24 karat; gold that is50 percent pure is12 karat.
   開測量黃金純度的單位，等於24等分中的一分。純金為24開; 50％純度的黃金為12開

英文解釋：

名詞 karat:

1. the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold
   同義詞：carat, kt