pure-blooded

纯种的

例句与用法：

A unit of measure for the fineness of gold, equal to 1/24 part. Pure gold is 24 karat; gold that is 50 percent pure is 12 karat.

开测量黄金纯度的单位，等于24等分中的一分。纯金为24开; 50％纯度的黄金为12开。