生殖腺

例句：

1. 1.The male and female reproductive organs are called gonads.
   男性和女性的生殖器官被称为睾丸或卵巢。
2. 2. Thehuman body has two main reproductiveorgans: the testes (orgonads) and the ovaries.
   人体有两个主要的生殖器官：睾丸
3. 3. Insome species, the gonads maybe located in different parts of the body.
   在一些物种中，生殖腺可能位于身体的不同部位。