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- Fish are aquatic vertebrate animals that are typically ectothermic (previously cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. 鱼是水生脊椎动物，典型特征是属冷血动物，全身有鳞片，有一对鱼鳍或几个不成对的鱼翅。
- 8.primitive jawless aquatic vertebrate: lampreys; 原始的无颚脊椎动物；七鳃鳗；
- primitive jawless aquatic vertebrate: lampreys; hagfishes. 原始的无颚脊椎动物；七鳃鳗；八目鳗类鱼。
- Any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills. 多种冷血的水生脊椎动物，通常有鳞并用腮呼吸。
- Any of various primitive aquatic vertebrates of the class Cyclostomata,lacking jaws and including the lampreys and hagfishes. 鳗类，鳗无颚的各种原始水生圆口纲脊椎动物中的一种，包括七鳃鳗和盲鳗
- Any of various primitive aquatic vertebrates of the class Cyclostomata, lacking jaws and including the lampreys and hagfishes. 腹足类的一个很大的目，包含单壳软体动物，有一个梳状鳃。
- Adults are omnivorous and feed on aquatic vertebrates, invertebrates such as snails, clams and shrimp, and algae (Ref. 36739). 成鱼是杂食性的而且吃水生的脊椎动物无脊椎动物例如蜗牛，蛤与虾 , 与藻类。
- Many forms of aquatic life inhabit ponds. 有很多种水生动植物均栖居於池塘。
- Swimming and water-skiing are both aquatic sports. 游泳和滑水都是水上运动。
- We visited an aquatic city in Italy. 我们在义大利访问过一个水上城市。
- One of the digits of a vertebrate. 趾脊椎动物的足趾中的一个
- A place where fish or other aquatic animals are caught. 渔场捕到鱼或其它水生物的地方
- the tail of fishes and some other aquatic vertebrates 鱼类和其他水生脊椎动物的尾巴
- The lower jaw of a vertebrate animal. 下颌骨脊椎运动的下颌骨
- The vertebrate vocal organs;a vocal defect. 脊椎动物的发声器官；发声上的缺陷
- Lacking a backbone or spinal column;not vertebrate. 无脊椎的缺少脊骨或脊柱的；无脊椎的
- The vertebrate spine or spinal column. 脊骨脊椎动物的脊椎或脊柱
- Otter is a fur-covered, fish-eating aquatic animal. 水獭是全身长毛、以鱼为食的水生动物。
- They sell aquatic products, e.g. crabs and shrimps. 他们卖水产品，比如说螃蟹和虾。
- Minute, free-floating aquatic plants. 浮游植物群落自由浮动的微小水生植物群
