gonopod

例句：

1. 1. The farmer was proud of his gonopods.
   这位农民为自己的公猪感到骄傲。
2. 2. The gonopods are the only source of meat for many farm animals.
   公猪是许多农场动物唯一的肉类来源。
3. 3. The gonopods are responsible for the fertilization of the female pig's eggs.
   公猪负责将精子传递给雌性猪的卵子，进行受精。