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	Saint-Simonism Saint-Tropez Saint-Étienne saintdom saintdoms Sainte-Beuve Sainte-Foy Sainte-Julie sainte-thé Sainte-Thérèse sainted sainter saintesses outstripping outstrips outstript outstrode outstroke outstrokes outstruck outstudied outstudies outstudying outstunted outstunting

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