scientific observation

US 
UK 
  • un.科学观测
  • Web科学观察;科学的观察
un.
1.
科学观测

Sample Sentence

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