aux.

US 
UK 
  • abbr.(=auxiliary)
  • Web助动词;辅助;必须
abbr.
1.
(=auxiliary)

Sample Sentence

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