单词	knuckles 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 knuckles down verb present tense third-person singular of knuckle down as in pitches in Synonyms & Similar Words Relevance pitches in bangs away buckles (down) slaves applies (oneself) hammers (away) pegs (away) moils labors beavers (away) struggles toils grubs plows travails digs in tugs drudges endeavors attacks plugs fags strives humps essays works overexerts digs (away) ekes out hustles sweats plods strains tries slogs drives exercises grinds (out) exerts overworks scratches scrabbles wades puts out trudges Antonyms & Near Antonyms eases (up) goldbricks hangs (around or out) slacks (off) breaks slackens lets up dillydallies hacks (around) goofs (off) footles rests lounges shirks chills bums veges out dallies idles lazes loafs vegges out relaxes potters (around) hangs about fools around fribbles plays reposes unwinds monkeys (around) hangs lolls putters (around) messes around basks goofs (around) doodles trifles dabbles See More
随便看	dress-down day dress-up dress-ups dressage dressages dressed dressed and matched dressed down dressed masonry dressed overall dressed to kill dressed up dresser Dresser coupling dresser set dresser tray dressers dresses dresses down dresses up dressest dressier dressiest dressiness dressinesses

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