gonadotrophins

例句：

1. 1. The researchers discovered that the gonadotrophins were responsible for the growth of the male and female reproductive organs.
   研究人员发现促性腺激素负责男性和女性生殖器官的生长。
2. 2. The gonadotrophins are essential for the development of the human brain and nervous system.
   促性腺激素对人类大脑和神经系统的发展至关重要。
3. 3. The gonadotrophins play a crucial role in the regulation of fertility and sexualfunction.
   促性腺激素在调节生育能力和性功能方面起着关键作用。