“幼体”用英语怎么说？

大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.毛虫是蝴蝶的幼体.A caterpillar is the larva of a butterfly.蝌蚪是蛙的幼体.The tadpole is the larva of the frog....

“幼体”的拼音为：yòu tǐ...