He took a short leave of absence because of hip and knee problems.

他因为髋关节和膝关节出问题也请了短假。

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There was an even more pronounced link between regular dancing in three-inch heels and a reduced risk of knee problems.

研究者们甚至发现经常穿三英寸高的高跟鞋跳舞明显和降低膝盖得病的危险有关。

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Background: Patellofemoral pain syndrome is one of the most common knee problems and may be related to abnormal patellar tracking.

背景知识概要：髌股关节疼痛综合症是最常见的膝关节病变之一，可能和异常的髌骨轨迹有关。

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King has chronic knee problems which limit his appearances and his call-up angered Spurs boss Harry Redknapp.

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The drawback is that he had knee problems last season and is about 10 pounds overweight at 265.

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