pregnanedione

例句：

1. 1. Pregnanedione is a natural hormone that plays a crucial role in the development of the fetus during pregnancy.
   孕甾酮是一种自然激素，在怀孕期间对胎儿的发展起着至关重要的作用。
2. 2. The body produces pregnanedione to regulate menstruation and ovulation.
   身体产生孕甾酮来调节月经和排卵。
3. 3. Pregnanedione has been found to have anti-inflammatory properties, which may help reduce symptoms associated with inflammation.
   研究发现孕甾酮具有抗炎性质，可能有助于减轻与炎症相关的症状。