bloodlines
n.
（动物的）血统，血族( bloodline的名词复数 );
例句:
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The bulls producing donor sperm are screened first for disease and bloodlines.
对用作提供精液的公牛,首先要调查它们的病史和血缘关系.
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But he was very adept in researching bloodlines.
不过他在搜寻种马上还是很称职的.
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Gold is found in the blod - which goes to bloodlines.
黄金是在血液里——转到血统里.
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Chiefs were anointed by bloodlines, as with European kings.
来自NEWYORKER
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There are literally hundreds, if not thousands of breeds or bloodlines of pitbulls.
来自SA
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But, ultimately, looking at marriage within the same bloodlines has a limited scope, right?
来自SA