experimental investigation

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UK 
  • un.试验研究;实验研究
  • Web实验观察
un.
1.
试验研究
2.
实验研究

Sample Sentence

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