单词	man-day
释义	man-day noun ˈman-ˈdā  : a unit of one day's work by one person Word History First Known Use 1925, in the meaning defined above
随便看	nigrify nigrifying nigrine Nigritian nigritude nigritudes nigromancer nigrometer nigropori nigroporuses nigroporusses nigrosin Nigrosine nigrosine base b nigrosine spirit soluble nigrosine water soluble nigrosines nigrosins nigrous nigs nigua nigun nigunim NIH niha

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