请翻译以下句子为中文，并且说明语法和句子成分，预测清华大学新传考研可能会考的单词：President Xi Jinping has said that China's democracy has enriched the theory and practice of democracy in the world, while urging constant efforts to uphold, improve and run the system of people's congresses effectively to develop whole-process people's democracy.

句子翻译: 习近平主席表示，中国的民主丰富了世界民主的理论和实践，同时敦促不断努力，坚持、完善和有效运行人民代表大会制度，发展全过程人民民主。

语法和句子成分分析

• 主语: President Xi Jinping
• 谓语: has said
• 宾语: that China's democracy has enriched the theory and practice of democracy in the world, while urging constant efforts to uphold, improve and run the system of people's congresses effectively to develop whole-process people's democracy.
• 宾语从句: that China's democracy has enriched the theory and practice of democracy in the world
• 并列连词: while
• 并列谓语: urging constant efforts to uphold, improve and run the system of people's congresses effectively to develop whole-process people's democracy.

预测清华大学新传考研可能会考的单词

1. Democracy - 民主
2. Theory - 理论
3. Practice - 实践
4. Uphold - 坚持
5. Improve - 完善
6. Run - 运行
7. System - 制度
8. People's Congresses - 人民代表大会
9. Whole-process People's Democracy - 全过程人民民主

这些单词不仅在句子中出现，也是新闻传播领域的重要概念，可能在考研中作为关键词或考点出现。