名词
中文翻译：泄殖腔开口
同义词：
['cloacal orifice', 'cloacal aperture']
例句：
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1.The animal's cloacal opening is exposed and can be seen through the skin.
动物的泄殖腔开口暴露在外，可以通过皮肤看到。
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2. The scientist discovered a new species of fish with a unique cloacal opening.
科学家发现了一种具有独特泄殖腔开口的新鱼类。
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3.The researcher studied the function of the cloacal opening in the digestive system of the animal.
研究者研究了动物消化系统中泄殖腔开口的功能。