vocal: usually implies ready responsiveness to an occasion for expression or free and usually forceful, insistent or emphatic voicing of one's ideas or feelings : one of the president's most ~ critics.


articulate: implies the use of language which exactly and distinctly reveals or conveys what it seeks to express: questioned the validity of literary criticism coming from those who are themselves hardly ~.


fluent: stresses facility in speaking or writing and copiousness in the flow of words: seemed to be ~ on any subject; it can also apply to facility and ease in the use of a foreign language: had a ~ command of idiomatic French.


eloquent: usually implies fluency but it suggests also the stimulus of powerful emotion and its expression in fervent and moving language: moved by the ~ words of the Gettysburg Address .


voluble: is usually somewhat derogatory and suggests a flow of language that is not easily stemmed: indulge in ~ explanations.


glib: is also usually derogatory and implies superficiality or emptiness in what is said or slipperiness or untrustworthiness in the speaker: a ~ reply; known for his ~ tongue.


vocal发声的: 积极表达有力发声，articulate准确: 语言准确清楚表达想表达的意思，fluent流利: 强调轻松(facility)和健谈(copious大量)，或外语轻松容易，eloquent雄辩: 热情动人语言，激发激情，voluble喋喋不休: 贬义，一串话难以断句，glib油嘴滑舌: 同样贬义，语言空洞肤浅，说话人油滑不可信


记忆方法: 1) 首字母VAFEVG重组为GAVE给和FV五<==给健谈的人五颗星
     
         2) 健谈的意思是能清晰轻松地表达自己mean being able to express oneself clearly and easily.首字母VAFEVG重组为GAVE给和FV五<==给健谈的人五颗星