...the erosion of moral standards.道德沦丧More familiar landscapes have been sculpted by surface erosion.还有更多熟悉的地貌是因地表侵蚀形成的。Abrasion also abets wind erosion.磨损作用也助长了风的侵蚀.As their roots are strong and penetrating, they preven...
About 70% of the cocoa acreage is treated with insecticide...大约 70% 的可可树林地喷过杀虫剂。Apply the insecticide sparingly.慎用杀虫剂。The result of the same insecticide against different popution instar larva of Cnaphalocrocis medinalis...