to knuckle down to something
埋头做某事
Are you going to knuckle down?
你准备屈服吗？
It's time to knuckle down to work.
该开始努力工作了。
We've got to knuckle down and clean the house.
我们得好好干了, 把屋子打扫干净。
If you want to pass that exam， youll have to knuckle down.
你要想考试及格，就得开始下功夫了。
Dear god do want to tear your knuckle down and hold yourself.
上帝呀，你真要撕毁自己的关节保存自己吗？
You'll really have to knuckle down if you want to pass the examination.
如果想通过考试，你确实应专心学习。
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。
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