oxymycin

例句：

1. 1. Oxytocin is a hormone that regulates the release of milk during lactation.
   催产素是一种调节哺乳期间乳汁释放的激素。
2. 2. The study found that oxytocin could help reduce stress and improve mood.
   研究发现，催产素可以帮助减轻压力并改善情绪。
3. 3. Oxytocin has been used in medical treatments to promote labor and reduce pain during childbirth.
   催产素在医疗治疗中被用于促进分娩和减少分娩时的疼痛。