gill pouch

例句：

1. 1. The fisherman carefully removed the gill pouch from the fish's body.
   渔夫小心翼翼地从鱼的身体上取出鱼鳔袋。
2. 2. The fish was caught in a net and then its gill pouch was removed to release it.
   这条鱼被网住了，然后它的鱼鳔袋被取出来让它呼吸。
3. 3.The gill pouch is a vital organ that helps the fish breathe underwater.
   鱼鳔袋是一个关键的器官，帮助鱼类在水下呼吸。