knuckle down

短语

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发音

AU

词形变化

knuckled down knuckles down 三单 knuckles down knuckling down knuckling down 现在分词 knuckled down 过去式 knuckled down 过去分词

释义与例句

v.
  1. 1.

    To get to work; to focus on a task.

    习语 不及物

    You should knuckle down and do your homework!

  2. 2.

    To submit; knuckle under.

词汇关系

动词

同义词 3

slave break one's back buckle down

上位词 1

work

词源

1864 in American English, from the game of marbles.

来源：wiktionary