dorsal
[ˈdɔ:sl]
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基本释义：adj.背部的，背脊的
英英释义：of, on or near the back of an animal
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| 参考例句：
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- 1. His dorsal fin was down and his huge pectorals were spread wide. 它的脊鳍朝下耷拉着，巨大的胸鳍大张着。
- 2. The shark's dorsal fin was cut off by the fisherman. 鲨鱼的背鳍被渔夫割了下来。
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