established custom

US 
UK 
  • n.成俗
  • Web确定的惯例
n.
1.
成俗
un.
1.
既定惯例

Sample Sentence

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