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1.The allethrin was effective against the pests.
这种阿利特林对害虫很有效。
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2.Allethrin is a common insecticide used to control pests.
阿利特林是一种常用的杀虫剂,用于控制害虫。
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3. The farmers sprayed the allethrin on the crops to protect them from pests.
农民们在农作物上喷施了阿利特林,以保护它们免受害虫侵害。