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| 11. | He was built as a sword fish except for his huge jaws which were tight shut now as he swam fast, just under the surface with his high dorsal fin knifing through the water without wavering. |
| 它长得和剑鱼一般，除了它那张正紧闭着的大嘴，它眼下就在水面下迅速地游着，高耸的脊鳍像刀子般划破水面，一点也不抖动。 |
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| 12. | any of several large vigorous pelagic fishes resembling sailfishes but with first dorsal fin much reduced; worldwide but rare. |
| 与旗鱼属相象的几种大型健壮的远洋鱼，但第一背鳍大部分退化；遍布但稀有。 |
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| 13. | Of, relating to, or being the marine teleost fishes of the order Pediculati, characterized by pectoral fins extending from an armlike process and a dorsal fin ray that serves as a lure for prey. |
| 柄鳍目鱼的属于、有关或是柄鳍目硬骨海鱼的，以从臂状突起延伸而成的腹鳍为特征且其背鳍骨可作捕杀猎物的诱饵之用 |
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| 14. | any of various food and sport fishes of the United States Atlantic coast having an elongated body and long spiny dorsal fin. |
| 生活在美国大西洋沿岸、身体细长且长有长长背鳍的多种食用和猎用鱼。 |
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| 15. | largest family of living sharks; found worldwide esp. in tropical waters; dorsal fin lacks spines: requiem sharks including tiger sharks and soupfin sharks. |
| 最大的鲨鱼科；世界各地都有，尤其是在热带水域；背鳍无刺；包含鼬鲨和油翅鲨的真鲨科。 |
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| 16. | dogfishes having a spine in each dorsal fin. |
| 背鳍上各有一刺的角鲨鱼。 |
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| 17. | Any of several gregarious toothed whales of the genus Phocaena and related genera, of oceanic waters, characteristically having a blunt snout and a triangular dorsal fin. |
| 鼠海豚一种鼠海豚属小型群集齿鲸，其共同特点是生活于海洋中，生有钝圆白的吻部以及三角形的背鳍 |
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| 18. | the dorsal fin is the vertical fin on the back of a fish and certain marine mammals. |
| 背鳍就是在鱼或者某些海洋哺乳动物背上的垂直鳍。 |
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| 19. | anglers and batfishes; spiny-finned marine fishes having pectoral fins at the ends of armlike processes and a long movable spine on the dorsal fin to lure prey to the large mouth. |
| 鮟鱇和圆燕鱼；鳍呈刺状的鱼类，其胸鳍生于一个臂状突出物的顶端，脊骨生于背鳍之上，较长，可移动，用以将猎物吸引至其大嘴边。 |
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| 20. | primitive long-bodies carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America. |
| 原始的长身体食肉性淡水鱼，有长背鳍；产于北美洲流动缓慢的水域。 |
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