They are cousins of propinquity.
他们是血统很近的表亲.
《现代英汉综合大词典》
For propinquity, come, we do a cup again!
为了咱们的亲近, 来, 我们再干一杯!
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The neighbours lived in close propinquity toeach other.
这些邻居住得很近.
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They are both cousins of his, but not of the same degree of propinquity.
他们两都是他的表弟, 但是在血缘上不同程度相近.
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