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stratum

US [ˈstrɑtəm]
UK [ˈstrɑːtəm]
  • n.地层;阶层;岩层
  • Web发现地层;社会阶层;阶层架构
Plural Form:strata  
stratum
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n.
1.
层;岩层;地层a layer or set of layers of rock, earth, etc.
2.
阶层a class in a society
people from all social strata
来自不同社会阶层的人

Sample Sentence

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