concentrated on is concentrate on's Past Tense

concentrate on

US 
UK 
  • na.集中在;专心于
  • Web专注;心致志的;非常注意
Simple Present:concentrates on  Present Participle:concentrating on  Past Tense:concentrated on  
na.
1.
集中在;专心于

Sample Sentence

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