单词	knuckled 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 knuckled down verb past tense of knuckle down as in pitched in Synonyms & Similar Words Relevance pitched in buckled (down) banged away dug in applied (oneself) hammered (away) moiled labored toiled beavered (away) struggled grubbed plowed slaved strove sweat drudged dug (away) pegged (away) humped tugged travailed endeavored plugged attacked eked out tried hustled put out fagged wrought worked sweated plodded strained essayed slogged overexerted strived exerted ground (out) overworked drove exercised scrabbled scratched waded trudged Antonyms & Near Antonyms eased (up) hacked (around) hung (around or out) slacked (off) broke let up slackened goofed (off) hanged (around or out) chilled idled goldbricked rested lounged relaxed loafed bummed shirked lazed vegged out dallied dillydallied footled hung about fooled around goofed (around) played monkeyed (around) pottered (around) lolled hung basked reposed unwound puttered (around) hanged trifled dabbled messed around doodled fribbled See More
随便看	sub-colonies sub-colony sub-commission sub-commissions sub-component sub-components sub-counties sub-county sub-cult sub-cults sub-cycle sub-dean sub-deans sub-decision sub-decisions sub-department sub-departments sub-development sub-developments sub-dialect sub-dialects sub-director sub-directories sub-directors sub-directory

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