branchial gill arc

例句：

1. 1.The fish had a branchial gill arc that could be seen clearly in the water.
   这条鱼有一个可以在水中清楚地看到的鳃盖弧。
2. 2.The scientist found a rare species of fish with a unique branchial gill arc.
   这位科学家发现了一种罕见的鱼类，具有独特的鳃盖弧。
3. 3.The researcher studied the behavior of fish with different branchial gill arcs to understand their adaptations.
   这位研究员研究了不同鳃盖弧的鱼类的行为，以了解它们的适应机制。