名词
中文翻译：四头蛇
同义词：
['quadruped', 'tetrapod']
例句：
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1.The quadruped was a creature that could walk on all fours.
这个四足动物是一种可以四脚行走的生物。
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2. The tetrapod is a type of animal that has four legs.
四足动物是一种有四条腿的动物。
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3. The tetrapod was discovered in the desert during a scientific expedition.
在一次科学考察中，发现了一种四足动物。