官名。唐代一般指胥吏及差役。因事必经由其手，故称。吏役多属于府县，故府县官称为所由官。宋代也延称差役为所由。
所由
双语例句原声例句
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在过去的一年里，至少有两家律师事务所由于合同制律师遭起诉。
In the past year, at least two law firms have been sued over issues relating to work by contract attorneys.
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各州议会必须对种种问题予以解决，比如医保交易所由谁来管理？
Legislatures must answer a host of questions.Who should govern the exchange?
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该研究所由华盛顿特区的联合大学天文学研究机构为NASA管理。
The institute is operated for NASA by the Association of Universities for Research in Astronomy, Inc. in Washington, D.C.
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The Little Magazine was written by, addressed to, new young writers and artists, and they were determined to make trouble.
而小杂志则是由年轻的作者和艺术家所编写，也是为了向这些群体致敬，它的存在就是为了惹火上身。
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That's not just a set of functions--variables, as one might say in the lab.It's produced by genius.
它不仅仅只是一套机器，像人们在实验室所见的一样多变，它是由天才创作的。
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But in any event, this suggests that these settlements were established peacefully, not by a group coming in and conquering.
但无论如何也显示了,这些居住所是被和平地建成的，而不是由一个部族进入然后攻占。
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