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单词 primary-source
释义

primary source

noun
/ˈpraɪməri sɔːs/
/ˈpraɪmeri sɔːrs/
  1. a document, etc. that contains information obtained by research or by observing somebody/something carefully, not taken from other books, etc.第一手资料;(通过研究或观察等获得的)直接材料 compare secondary source
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更新时间:2025/3/15 15:20:39