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  • n.第一手资料;(通过研究或观察等获得的)直接材料
  • Web主电源;主要来源;第一手史料
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n.
1.
第一手资料;(通过研究或观察等获得的)直接材料a document, etc. that contains information obtained by research or observation, not taken from other books, etc.

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard