noun 下载 🔗分享 线虫,蛔虫 An invertebrate animal of the phylum Nematoda and other similar phyla. Many species of roundworms are parasites. Examples : "Our dog has been scratching a lot, and the vet suspects he might have roundworms. " 我们的狗最近一直在挠痒痒,兽医怀疑它可能得了蛔虫病。 animal biology organism nature disease medicine 与AI对话词汇游戏阅读练习