cervical dystocia

例句：

1. 1. The patientwas admitted to the hospital with a perineal tear.
   患者因会阴撕裂入院。
2. 2. The doctor performed an emergency repair ofthe perineal tear.
   医生紧急修复了会阴撕裂。
3. 3. The child was bornwith a perineal lacerationand required immediate medical attention.
   这个孩子出生时有会阴裂伤，需要立即医疗关注。