睾丸激素

例句：

1. 1.Testosterone is the primary androgen in men, responsible for the development of male secondary sex characteristics.
   睾酮是男性的主要雄激素，负责男性第二性征的发展。
2. 2. The body produces testosterone during puberty, which plays a crucial role in the growth and development of boys.
   青春期时，身体会产生睾酮，对男孩的生长和发育起着至关重要的作用。
3. 3. Testosterone therapy has been shown to improve mood and reduce symptoms of depression in men with low testosterone levels.
   研究表明，睾酮治疗可以改善情绪并减轻低睾酮水平男性的抑郁症状。