trail pheromone

基本解释

When an ant finds food, she takes it back to the nest, leaving behind a pheromone trail that will attract others.
当一只蚂蚁找到了食物，它把食物带回巢穴，并且在路上留下信息素以吸引其他的蚂蚁。
"When these ants bring food back to the nest, they lay a pheromone trail that tells other ants to go get more food, " Harper explains.
“当这些蚂蚁将食物带到蚁巢时，它们会在途中留下追踪信息素，这样其它蚂蚁也能去找到更多的食物”，哈普尔解释道。
The pheromone trail gets reinforced every time an ant goes out and comes back, kind of like when you wear a trail in the forest to collect wood.
而这种追踪信息素在每次觅食蚁出去再回来便会增强，有点像你在森林为了收集木材而做标记。