knuckled down

  • na.开始认真工作;干劲十足地干

第三人称单数:knuckles down 现在分词:knuckling down 过去式:knuckled down

knuckled downknuckled down

knuckled down

na.

1.开始认真工作;干劲十足地干

2.(向...)投降 (to) (=knuckleunder)

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