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单词 纯种
释义 〔grade〕To improve the quality of (livestock) by crossbreeding with purebred stock.改良品种:与纯种家畜杂交来改良(家畜)品质〔grade〕A domestic animal produced by crossbreeding one of purebred stock with one of ordinary stock.改良品种:一种家畜,由一个纯种家畜和一个普通家畜杂交得到〔blood〕Recorded descent from purebred stock.良种:有记载的纯种出身〔thoroughbred〕A purebred or pedigreed animal, especially a horse.纯种动物:尤指马等纯种或纯系动物
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