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| 11. | whales of of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal |
| 几种喉部有纵向沟槽且背鳍小而尖的须鲸科长须鲸。 |
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| 12. | large elongate scaleless oceanic fishes with sharp teeth and a long sail-like dorsal fin. |
| 细长的大型海生无鳞鱼，有尖牙和船帆形的长背鳍。 |
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| 13. | large deep-water shark with white-tipped dorsal fin; worldwide distribution; most dangerous shark. |
| 生活在深海长有白色背鳍的大鲨鱼；分布于世界各地；最危险的鲨鱼。 |
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| 14. | any of several large vigorous pelagic fishes resembling sailfishes but with first dorsal fin much reduced |
| 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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| 15. | "It has one dorsal and one anal fin, Both long and Both connected to the rounded tail. " |
| 背鳍和臀鳍各一,形长,均与尾鳍基部相连,尾鳍圆形 |
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| 16. | an anal [dorsal, pectoral, ventral] fin |
| 尾 [背,胸,腹] 鳍 |
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| 17. | primitive long-bodies carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters |
| 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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| 18. | numerous compressed deep-bodied tropical fishes with sandpapery skin and erectile spines in the first dorsal |
| 多种身体扁平细长的热带鱼，皮肤粗糙如砂纸，前部的背鳍可直立如硬刺。 |
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| 19. | brightly colored tropical Pacific scorpion fishes of the genus Pterois, having venomous spines in the dorsal |
| 蓑一种太平洋赤道地区产蓑属色彩鲜艳的锯鱿鱼，背鳍上有毒刺 |
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| 20. | The shark's fin sliced the water. |
| 鲨鱼的背鳍像刀样迅速划破水面。 |
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