glands of Leydig

例句：

1. 1. The testicular glands are responsible for producing sperm.
   睾丸腺体负责产生精子。
2. 2. The study of the testicular glands is crucial for understanding male fertility.
   研究睾丸腺体对于理解男性生育能力至关重要。
3. 3.The testicular glands play a vital role in the development of the male reproductive system.
   睾丸腺体在男性生殖系统的发育中起着关键作用。