swim-up larvae

例句：

1. 1. The fish swim-up larvae are a popular snack for children.
   这些鱼的游泳幼虫是孩子们的热门零食。
2. 2. The researchers found that the swim-up larvae had developed resistance to the pesticide.
   研究人员发现，这些游泳幼虫已经对农药产生了抗性。
3. 3. The scientists observed that the swim-up larvae were feeding on the plants.
   科学家们观察到，这些游泳幼虫正在吃植物。