名词
中文翻译：Unknown
同义词：
['narrow-spectrum pesticide', 'narrow-spectrum herbicide', 'narrow-spectrum fungicide']
例句：
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1. The narrow-spectrum insecticide was effective against the target pests.
这种窄谱杀虫剂对目标害虫有效。
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2. The farmers used the narrow-spectrum insecticide to control the weeds in their fields.
农民们使用这种窄谱杀虫剂来控制他们田地里的杂草。
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3. The narrow-spectrum insecticide is a safe and effective alternative to traditional pesticides.
这种窄谱杀虫剂是传统杀虫剂的更安全有效的替代品。