What seems to have happened is that Mr. Obama's caution, his reluctance to stake out a clearly partisan position, led him to propose a relatively weak, incomplete health care plan.
看起来发生的事情是奥巴马的谨慎，他不愿意正面支持，让他在健康关爱计划里不完整，站不住脚。
Then describe the concept and type of rail transit hub clearly, and propose the three-stage method to analyze passenger flow in rail transportation hub.
然后对轨道交通枢纽的概念及类型进行了明确的描述，提出了研究轨道交通枢纽客流分析的三阶段法，并确定论文的主要研究范围。
Clearly the goal of safe water resources, propose the assessment theory and method of water resources security, stress and stress-response models.
明确了水资源安全的目标，介绍了水资源安全评价的理论与方法。
Clearly the goal of safe water resources, propose the assessment theory and method of water resources security, stress and stress-response models.
明确了水资源安全的目标，介绍了水资源安全评价的理论与方法。
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