posterior cruciate ligament of knee

例句：

1. 1. The injury to the posterior cruciate ligament has caused significant painand limited mobility in his knee.
   后交叉韧带的损伤导致他膝盖剧烈疼痛并限制了活动。
2. 2. During a sports injury,the posterior cruciate ligamentis often the first part of the kneejoint to be affected.
   在运动伤害中，后交叉韧带往往是膝关节最先受到影响的部分。
3. 3.In some cases, surgical repair of theposterior cruciate ligament maybe necessary to alleviate pain and improve function.
   在某些情况下，修复后交叉韧带可能是必要的，以减轻疼痛并改善功能。