名词
中文翻译：香胶
同义词：
['pyrethrin', 'pyrethroid']
例句：
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1.The insecticide is made from the extract of the pyrethrum plant.
这种杀虫剂是从香胶植物的提取物中制成的。
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2. The pyrethrum was used to kill the pests in the fields.
用香胶来杀死田地里的害虫。
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3.The farmers sprayed the pyrethrum on the crops to protect them from pests.
农民们喷洒了香胶在农作物上以保护它们免受害虫侵害。