jam sessions is jam session's Plural Form

jam session

US 
UK 
  • na.一群演奏者为自己举行的非正式演奏会;〈美俚〉爵士音乐即席演奏会
  • Web即兴合奏;即兴联演;即兴时期
Plural Form:jam sessions  
na.
1.
〈美俚〉爵士音乐即席演奏会;一群演奏者为自己举行的非正式演奏会

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