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upper layer

US 
UK 
  • un.上层;表土;顶层
  • Web高层;上层通信;较高层
un.
1.
上层
2.
表土
3.
顶层

Sample Sentence

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