musculus pubovesicalis

例句：

1. 1.The testicles are the organs responsible for producing sperm and eggs.
   睾丸是负责产生精子和卵子的器官。
2. 2. During puberty, boys' testicles grow larger and become more sensitive.
   青春期，男孩的睾丸变大且更敏感。
3. 3. Muscles in the abdomen are important for maintaining good posture and preventing back pain.
   腹部肌肉对于保持良好的姿势和预防背痛非常重要。