mating holes

例句：

1. 1.The scientists discovered the male and female reproductive organs in the animal's body.
   科学家们在动物体内发现了雄性和雌性的生殖器官。
2. 2. The researchers found that the male and female reproductive organs are essential for reproduction.
   研究人员发现，雄性和雌性的生殖器官对于繁殖至关重要。
3. 3.The scientists believe that the male and female reproductive organs play a crucial role in the process of reproduction.
   科学家认为，雄性和雌性的生殖器官在繁殖过程中起着关键作用。