名词
中文翻译：鳃盖
同义词：
['operculum', 'gill cover']
例句：
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1.The fish had a slender body and an opercular gill that allowed it to breathe underwater.
这条鱼身体细长，有一个鳃盖叶，允许它在水下呼吸。
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2. The scientist observed the fish's opercular gills as they moved through the water.
科学家观察了这条鱼在水里移动时鳃盖叶的动态。
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3. The opercular gills of the shark were visible as it breached the surface.
当鲨鱼露出水面时，它的鳃盖叶是可见的。