preliminary investigation

US 
UK 
  • un.初步查勘
  • Web初步调查;初步调查分析;预测试
un.
1.
初步查勘

Sample Sentence

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