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call upon

US 
UK 
  • na.“call on”的变体;同“call on ”
  • Web号召;拜访;求告
Simple Present:calls upon  Present Participle:calling upon  Past Tense:called upon  
na.
1.
“call on”的变体
2.
同“call on ”

Sample Sentence

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