noun 下载 🔗分享 节肢动物 An invertebrate animal of the phylum Arthropoda, characterized by a chitinous exoskeleton and multiple jointed appendages Examples : "The spider, a common arthropod, has eight legs with many joints and a hard outer shell. " 蜘蛛是一种常见的节肢动物,它有八条腿,腿上有许多关节,并且有一个坚硬的外壳。 animal biology nature insect organism 与AI对话词汇游戏阅读练习