以下为句子列表：
英文: New York has more rats than Chicago because Chicago has more alleyways,said Leonard Douglen, executive director of the New York Pest Management Association.
中文: 纽约四害管理协会执行主席里奥纳多·道格伦说：“纽约老鼠之所以比芝加哥多，是因为纽约的大街小巷不象芝加哥那么发达。”
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英文: It's main research topics are Integrated Pest management (IPM) approaches in order to contribute to the national environment-friendly agricultural development.
中文: 其研究的主要课题是综合病虫害治理方法，从而为全国范围内的有利于环境保护的农业发展作出贡献。
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英文: The occurrence and damage of the forestry pests in Huangpu district were introduced. Basing on studying its causation, the guidelines, principles and strategies of sustainale pest management were presented.
中文: 摘要本文介绍了黄埔区林业有害生物的必生和危害情况。在分析其原因的基础上，提出黄埔区林业有害生物持续控制的指导思想、原则和对策。
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