| 单词 | 后脚 |
| 释义 | 〔beaver〕A large aquatic rodent of the genusCastor, having thick brown fur, webbed hind feet, a broad flat tail, and sharp incisors adapted for gnawing bark, felling trees, and constructing dams and underwater lodges. 海狸，河狸：一种大的海狸属 水栖啮齿目动物，有着厚密的褐色毛皮、长蹼的后脚、宽平的尾巴和适合于咬树皮、弄倒树、建水坝及水下巢穴的尖锐前齿 〔hyracothere〕A small herbivorous mammal of the genusHyracotherium (syn. Eohippus ) from the Eocene Epoch of North America, having four-toed front feet and three-toed hind feet and related ancestrally to the modern horse. 始马：北美洲始新世始马属 （与 始祖马属 同义）的小型草食性哺乳类，其前脚为四趾后脚为三趾，与现代马有血缘关系 〔hallux〕The innermost or first digit on the hind foot of certain mammals. In human beings, it is commonly called the big toe.拇趾，大趾：某些哺乳动物后脚上最内侧或是人类的第一个脚趾头，它通常为称为大拇趾〔walk〕The gait of a quadruped in which at least two feet are always touching the ground, especially the gait of a horse in which the feet touch the ground in the four-beat sequence of near hind foot, near forefoot, off hind foot, off forefoot.四足动物步法：至少两只脚总是接触地面，尤指马的步法，四足以四拍的方式踏地，顺序为左后脚，左前脚，右后脚，右前脚 |
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