abnormality of birth canal

例句：

1. 1.The patient's abnormal heart rate is concerning.
   病人的异常心率令人担忧。
2. 2.The child's developmental milestones are well ahead of his peers.
   这个孩子的发育里程碑远远超前于他的同龄人。
3. 3.The abnormal growth pattern in the tumor is a cause for concern.
   肿瘤中不正常的生长模式是一个令人担忧的原因。