“Write about one important insect pest and one important disease that damage each of the following: corn, small grains, cotton.”这个是生物老师给的作业要求。。。谁能给翻译一下T^T 他是让写三个不同的损坏corn, small grains, cotton的diseases. 还是写一个那三种植物都能毁坏disease??呜呜外国人的说话方式百思不得其解~~