以下为句子列表：
英文: This text starts with producing the immediate cause the neglect of peasant worker, it is analyzed that its basic reason lies in a dual system that cuts apart in urban and rural areas.
中文: 摘要从产生“民工荒”的直接原因入手，分析其根本原因在于城乡分割的二元社会保障体制。
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英文: Variable Structure Control of a Singular Predator-prey-residual System based on Nutrition Dynamics
中文: 基于营养动力学的广义捕食者—食饵—生物残体系统的变结构控制
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