茁长素

例句：

1. 1. The growth hormone is essential for the body's development.
   生长激素对身体的发育至关重要。
2. 2. The research on growth hormone has been a hot topic in recent years.
   近年来，关于生长激素的研究成为了热门话题。
3. 3. The growth hormone therapy can help people with certain medical conditions to grow taller.
   生长激素疗法可以帮助患有某些医疗条件的人长得更高。