单词	Johnny-on-the-spot
释义	Johnny-on-the-spotˌJohnny-on-the-ˈspot noun [singular] informal someone who immediately offers to help, takes an opportunity etc
随便看	core coreligionist corer co-respondent Corfu corgi coriander Corinthian corinthian Cork cork corkage corked corker corking corkscrew Corleone, Vito cormorant corn cornball Corn Belt corn bread corn chip corncob corncrake

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