单词	man-hour
释义	man-hour noun ˈman-ˈau̇(-ə)r  : a unit of one hour's work by one person that is used especially as a basis for cost accounting and wages Word History First Known Use 1912, in the meaning defined above
随便看	sonatas sonatas da camera sonatas da chiesa sonatina sonatinas sonation sonchi Sonchus sonchuses sonchusses sondage sondages sonde sondeli sondelis sonders sondes Sondheim sone sones song song and dance song box song cycle song form

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