单词	covariation
释义	covariation noun co·​vari·​a·​tion ˌkō-ˌver-ē-ˈā-shən  : correlated variation of two or more variables Word History First Known Use 1906, in the meaning defined above
随便看	hiccough hiccoughed hiccoughing hiccoughs hiccup hiccup-nut hiccuped hiccuping hiccupped hiccupping hiccups hicht hichu hick hick joint hicker hickest hickey hickeys hickies hickish Hickok hickories hickory kalinin

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