pitressin

例句：

1. 1. Pitressin is a hormone that canhelp with labor and delivery.
   催产素是一种可以帮助进行分娩和生产的激素。
2. 2. Pitressin has been shown to have positiveeffects on mood and stress levels.
   研究表明，催产素对情绪和压力水平有积极影响。
3. 3. Pitressin is oftenused in medical treatments for conditions such aspreterm labor.
   催产素常用于医疗治疗早产等病症。