noun 下载 🔗分享 乌龟，龟。 Any of various land-dwelling reptiles, of the family Testudinidae or the order Testudines , whose body is enclosed in a shell (carapace plus plastron). The animal can withdraw its head and four legs partially into the shell, providing some protection from predators. Examples : "The zoo had a special exhibit featuring different species of tortoises, including some that were over a hundred years old. " 动物园有一个特别展览，展出不同种类的陆龟，其中一些已经超过一百岁了。 animal biology nature organism 与AI对话词汇游戏阅读练习
