| 单词 | 哺乳类 |
| 释义 | 〔dinothere〕Any of various extinct elephantlike mammals of the genusDinotherium that existed during the Miocene, Pliocene, and Pleistocene epochs. 恐兽：一种具有明显类似象的哺乳类动物恐兽 ，存在于中新世、上新世和更新世时代 〔chorion〕The outer membrane enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta.绒毛膜：在爬行类动物、鸟类及哺乳类动物中包含胚胎的外膜，在有胎盘哺乳动物中与胎盘的发育有关〔indricothere〕A very large extinct land mammal(Indricotherium transouralicum) of the Oligocene and Miocene epochs, related to the rhinoceros and characterized by a long neck. It is thought to be the largest and heaviest land mammal, with an estimated height up to 5.2 meters (17 feet) and weight up to 15,750 kilograms (35,000 pounds). 长颈犀牛：属于渐新世及第三纪中新世的一种非常大型绝种陆地哺乳类动物（长颈犀牛） ，与犀牛血缘相近且以长颈为特征，他被认为是世界上最巨大且最重的哺乳类动物，估计高约达5.2米（17英尺），重约15,750公斤（35,000英镑） 〔implicature〕The process by which such a meaning is conveyed, implied, or suggested. In saying"Some dogs are mammals,” the speaker conveys by implicature that not all dogs are mammals. 传达言下之意：这样的意义被传达、意指、或是建议的过程，当我们说"Some dogs are mammals" 时，说话者另一方面也传达了并非所有的狗都是哺乳类动物的言下之意 〔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 |
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