oligophagous

例句：

1. 1. This species is oligophagous and can only eat certain types of food.
   这种物种是寡食的，只能吃特定类型的食物。
2. 2. The oligophagous spider has a specialized diet that helps it survive in its environment.
   这种寡食蜘蛛有一种特殊的饮食，这有助于它在其环境中生存。
3. 3. The oligophagous animal has adapted to a diet consisting mainly of insects, which are abundant in its habitat.
   这种寡食动物已经适应了一种以昆虫为主的食物，这些昆虫在它的栖息地中非常丰富。