dilatation of uterine cervix

例句：

1. 1. The dilation of the uterine cervix is a common symptom of pregnancy.
   子宫颈部扩张是怀孕的常见症状。
2. 2. During labor, the dilation of the uterine cervix is essential for the babyto pass through.
   在分娩过程中，子宫颈部扩张对宝宝通过至关重要。
3. 3.The doctor advised her to take medication to dilate the uterine cervix before the procedure.
   医生建议她在手术前服用药物来扩张子宫颈部。