名词
中文翻译:背部的
同义词:
['dorsal horn', 'dorsal spine']
例句:
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1.The dorsal fin is used to help the fish swim upstream.
背鳍用于帮助鱼逆流而上。
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2. The dorsal fin is a unique feature of many fish species.
背鳍是许多鱼类特有的特征。
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3. The dorsal fin helps the fish maintain its position in the water.
背鳍有助于鱼类在水中保持稳定位置。