单词	rat-a-tat
释义	rat-a-tat noun ˈra-tə-ˌtat  variants or rat-a-tat-tat ˌra-tə-ˌta(t)-ˈtat  : a rapid succession of knocking, tapping, or cracking sounds Word History Etymology imitative First Known Use 1681, in the meaning defined above
随便看	frontogeneses frontogenesis frontolyses frontolysis fronton frontons frontopontine frontopontine tract frontpiece frontrunners fronts frontstall frontstalles frontstalls frontward frontwarder frontwardest frontwards frontways froppish frore frorer frorest frory fros

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