(向某人)屈服;认输;开始认真工作;

We still have two races left, and anything can happen, so we need to knuckle down.
我们还有两场比赛了, 任何事情都有可能发生, 因此我们需要认真.
来源:互联网摘选The only thing to do was knuckle down and get on with some serious hard work.
唯一能做的就是开始努力工作,好好干出点儿成绩来。
来源:《柯林斯高阶英汉双解学习词典》He managed to knuckle down to his lessons long enough to pass his examination.
他在离考试还有足够长时间的时候就开始认真学习,从而通过了考试。
来源:《柯林斯高阶英汉双解学习词典》GLEN JOHNSON is determined to knuckle down and prove himself to Jose Mourinho.
约翰逊一直虚心努力,为了向到穆帅证实自己的能力.
来源:互联网摘选
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