noun 下载 🔗分享 刺胞动物,腔肠动物 Cnidarian Examples : "While swimming in the ocean, we saw many jellyfish, which are a type of cnidaria. " 在海里游泳时,我们看到了很多水母,水母就是一种刺胞动物/腔肠动物。 animal biology organism 与AI对话词汇游戏阅读练习