nóngmín / fāxiàn / yùmǐ / dì / lǐ / chūxiàn / zuānxīnchóng / lìjí / pēnsǎ / le / nóngyào农民发现玉米地里出现钻心虫,立即喷洒了农药。When farmers found boring insects in the cornfield, they immediately sprayed pesticide.