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 little boy watched the tortoise slowly munch on a piece of lettuce in its enclosure. " 那个小男孩看着乌龟在它的围栏里慢慢地啃着一片生菜。 animal biology nature organism 与AI对话词汇游戏阅读练习
