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It is arguable whether the rebels will knuckle under.还不能确定反叛者是否会投降。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。They refused to knuckle under to any pressure.他们拒不屈从...
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knuckle的音标：knuckle的英式发音音标为：['nʌkl]knuckle的美式发音音标为：['nʌkəl]...
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knuckle的第三人称单数（三单）为：knuckles...
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n.（指人）指关节，（指动物）膝关节，肘，铰结，肘形接，铜指节套vt.用指关节打、压、碰、擦...
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knuckle的一般过去时为：knuckled...
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knuckle的现在进行时为：knuckling...
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knuckle的复数形式为：knuckles...
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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。It is arguable whether the rebels will knuckle under.还不能确定反叛者是否会投降。David Seaman was back in the Arsenal goal after brea...