once in a while

US 
UK 
  • na.偶尔;有时;时不时
  • Web间或;偶然;时而
na.
1.
偶尔;有时;时不时

Sample Sentence

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