单词	knuckling down
释义	knuckle down verb knuckled down; knuckling down; knuckles down intransitive verb : to apply oneself earnestly Word History First Known Use circa 1864, in the meaning defined above knuckling down verb present participle of knuckle down as in pitching in Synonyms & Similar Words Relevance pitching in banging away digging in buckling (down) applying (oneself) hammering (away) beavering (away) pegging (away) digging (away) eking out laboring plowing struggling toiling grubbing striving humping tugging travailing slaving drudging sweating endeavoring plugging moiling fagging hustling attacking plodding trying working putting out slogging grinding (out) essaying driving straining exerting overworking exercising overexerting scratching scrabbling wading trudging Antonyms & Near Antonyms easing (up) letting up hanging (around or out) hacking (around) slacking (off) goofing (off) breaking slackening chilling idling lounging vegging out resting shirking loafing lazing puttering (around) dallying relaxing goofing (around) fooling around pottering (around) bumming hanging about monkeying (around) basking playing hanging unwinding lolling reposing trifling goldbricking dillydallying messing around footling dabbling doodling fribbling See More
随便看	the Mafia the maghrib the Magi the mails the mains the mainstream the major leagues the majors the making of the man the man in the street the man of the house the man on the Clapham omnibus the man upstairs the many the Marine Corps the Marines the maritimes the mass of the masses the matter the mccoy the mearns the Messiah the metric system

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