back cavity

US 
UK 
  • un.后腔
  • Web背共鸣腔室;反射区
un.
1.
后腔

Sample Sentence

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