So the problem that we face with this is that, throughout the landscape, all these pools of water with the larvae, they are scattered all over the place, which makes it very hard for an inspector like this to actually find all these breeding sites and treat them with insecticides.
我们于是遇到的问题是 漫山遍野的水塘充斥着幼虫 它们到处都是 这让杀虫员 很难找到所有的据点来喷洒杀虫剂