sperm cell

例句：

1. 1. The study of sperm cells is crucial for understanding human reproduction.
   研究精子细胞对于理解人类生殖至关重要。
2. 2. Sperm cells are responsible for fertilizing eggs in the female reproductive system.
   精子细胞负责在雌性生殖系统中受精。
3. 3.In some species, sperm cells can be produced in large quantities to ensure a high success rate of fertilization.
   在某些物种中，可以大量产生精子细胞以确保较高的受精成功率。