柯林斯词典tortoise /ˈtɔːtəs/ (tortoises) 1. N-COUNT A tortoise is a slow-moving animal with a shell into which it can pull its head and legs for protection. 龟 返回 tortoise剑桥词典an animal with a thick , hard shell that it can move its head and legs into for protection . It eats plants , moves very slowly , and sleeps during the winter . 龟，陆龟 返回 tortoise