n.有害的人或物( pest的名词复数 );害虫;害兽;害鸟;
例句:
Away with all pests.
扫除一切害人虫.
Animal and vegetable pests propagate with extreme rapidity.
动植物病害传播极快。
Disease of animal and vegetable pests propagate with extreme rapidity.
动植物病害传播极快.