8 kinds of cleaning ways were all effective for vegetable pesticide residue remove, comparably, cutting epidermis effect was the best one.
8种洗涤方法对蔬菜中的农药残留均有祛除作用，综合比较，削皮处理祛除蔬菜上农药残留效果最好。
"My best guess is that this was the secondary effect, that they could have hit the ground very fast after being hit by a car or truck," she said.
“我的最佳猜测是，这种现象是二次效应，就是说这些鸟很可能是在被一辆汽车或卡车碰撞后又再次迅速的撞地而亡。”她说。
The hillside was terraced to reduce erosion and farmers were trained in using fertilizer and pest management to the best effect.
他们平整了山坡以防水土流失，还接受了怎样最有效地使用化肥和进行病虫害管理的技术培训。
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