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- Any of various marine cetacean mammals,such as the bottle-nosed dolphin,of the family Delphinidae,related to the whales but generally smaller and having a beaklike snout. 海豚，一种海豚科海洋鲸类哺乳动物，如的宽吻海豚，与鲸近似但一般比鲸小且有喙状吻。
- Any of various marine cetacean mammals, such as the bottle - nosed dolphin, of the family Delphinidae, related to the whales but generally smaller and having a beaklike snout. 海豚一种海豚科海洋鲸类哺乳动物，如的宽吻海豚，与鲸近似但一般比鲸小且有喙状吻
- Any of various marine cetacean mammals, such as the bottle-nosed dolphin, of the family Delphinidae, related to the whales but generally smaller and having a beaklike snout. 海豚一种海豚科海洋鲸类哺乳动物,如的宽吻海豚,与鲸近似但一般比鲸小且有喙状吻。
- several small gregarious cetacean mammals 几种小型群居的鲸类哺乳动物
- A whale is no less a mammal than a horse is. 鲸鱼和马一样都是哺乳动物。
- The whale is the largest mammal in creation. 鲸是世上最大的哺乳类动物。
- Whale is not a fish; it is a mammal. 鲸不是鱼类，它是一种哺乳动物。
- To draw milk from a female mammal. 挤奶从雌性哺乳动物身上挤奶
- Cetacean only heart beat nine every minute. 鲸鱼一分钟心跳只有9下。
- The bat is the only mammal that can fly. 蝙蝠是唯一会飞的哺乳动物。
- any of several small gregarious cetacean mammals having a blunt snout and many teeth. 吻部钝圆并长很多牙齿的几种小型群居的鲸类哺乳动物。
- Dolly was not only the largest mammal ever cloned. 多利不仅是克隆过的最大型的哺乳动物，
- A coating similar to the pelt of a mammal. 皮子象哺乳动物毛皮的覆盖层
- Eg. The elephant is the largest land mammal. 大象是最大的、陆地上的哺乳动物。
- any of the larger cetacean mammals having a streamlined body and breathing through a blowhole on the head. 任何比较大的哺乳动物，流线型的身体，通过头顶的喷水孔呼吸。
- A whale is no less a mammal than a horse. 鲸鱼与马一样,都是哺乳动物。
- The elephant is the only mammal that can't jump! 大象是唯一一种不会跳。
- The whale is the largest mammal in all creation. 鲸是全世界最大的哺乳动物。
- The whale is not a fish, but a mammal. 鲸不是鱼,而是哺乳动物。
- A hoofed mammal of the order Perissodactyla. 奇蹄目的带蹄哺乳动物
