provagina

例句：

1. 1. The female mammalhas a protuberance on herbelly that is used for laying eggs.
   雌性哺乳动物在腹部有一个突起，用于产卵。
2. 2. The ovaries of thefemale mammal are responsible for producingeggs.
   雌性哺乳动物的卵巢负责产生卵子。
3. 3.The oviducts of the femalemammal transport the eggs from theovaries to the uterus.
   雌性哺乳动物的输卵管将卵子从卵巢输送到子宫。