spontaneous labor的用法和样例：
例句
- Is Caesarean birth still natural labor very good?
剖腹产好还是顺产好？ - Conclusion Epidural anesthesia procedure can increase the spontaneous delivery rate, reduce the cesarean rate, release the pain in delivery, and improve the perinatal life quality.
结论实施镇痛分娩提高了自然分娩率，降低了剖宫产率，并缓解了分娩疼痛，提高了产妇围产期的生活质量。
