英语词汇“Johnny-on-the-spot”是什么意思，“Johnny-on-the-spot”的读音、用法及例句翻译-烛光网

词汇	Johnny-on-the-spot
释义	John·ny-on-the-spot AHD[jŏn'ē-ŏn"Yə-spŏtʹ, -ôn'-] D.J.[ˌdʒɒniːˌɒnðəˈspɒt, -ˌɔːn-]K.K.[ˌdʒɑniˌɑnðəˈspɑt, -ˌɔn-]n.Informal（名词）【非正式用语】 A person who is available and ready to act when needed.可随时应召出力的人：在需要时可随时应召并愿意出力的人
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