管管道

1.
tube
TOEFL+21天 ... truth n 真理;真实;真相,事实 tube n 管,管道;管状地下隧道 tundra n 冻土带,寒漠 ...
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Sample Sentence

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