名词
中文翻译：尾部
同义词：
['caudal vertebra', 'caudal fin']
例句：
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1.The fish swims with its tail up.
这条鱼用尾巴游动。
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2. The tail is the last part of the body to be developed.
尾巴是身体最后发育的部分。
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3.The tail helps the fish to balance and control its movement.
尾巴帮助鱼类保持平衡和控制运动。