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	cocksfoot cocksfoots cockshies cockshots cockshut cockshuts cockshy cocksman cocksmen cockspur cockspur flower cockspur grass cockspur hawthorn cockspur thorn cockspurs cocksucker cocksuckers cocksucking cocksure cocksurely cocksureness cocksurenesses cocksurer cocksurest cocksurety

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