繁殖纯种狗的唯一理由：是维护该纯种狗的品质，并不是为了市场需求。
The only reason to be breeding purebred dogs is to preserve the best qualities of the breed. Breeding to supply any market is not a justification.
世界上几乎没有任何种族完全同系繁殖，达到足以授予自己可疑的“纯种”荣誉的程度。
And there are very few communities in the world that are sufficiently inbred to be able to confer upon themselves the dubious honour of being "pure-bred".
世界上最后一只雄性的纯种哥伦比亚盆地侏儒兔最近不幸死亡。这致使美国在实施一个旨在试图拯救这种濒危物种免于灭绝的圈养繁殖计划的过程中，仅有两只纯种的雌性侏儒兔尚存。
The last male purebred Columbia Basin pygmy rabbit has died, leaving just two females in a captive breeding program created to try to save the endangered species from extinction.
要确定是否是纯种繁殖鸟应该搭配的是白色或黄色。
To determine if the bird is pure breeding it should be mated to a white or yellow.
这些动物是用纯种繁殖的。
这致使美国在实施一个旨在试图拯救这种濒危物种免于灭绝的圈养繁殖计划的过程中，仅有两只纯种的雌性侏儒兔尚存。
The last male purebred Columbia Basin pygmy rabbit has died, leaving just two females in a captive breeding program created to try to save the endangered species from extinction.
纯种繁殖的阿拉伯马。
纯种繁殖的阿拉伯马。
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