| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第8-11页 |
| Chapter 1 Introduction | 第11-15页 |
| ·Purpose and Significance of the Research | 第11-12页 |
| ·Research Questions | 第12页 |
| ·Research Method | 第12-13页 |
| ·Structure of the Thesis | 第13-15页 |
| Chapter 2 Literature Review | 第15-23页 |
| ·Diplomatic Language | 第15-17页 |
| ·Definition of Diplomatic Language | 第15页 |
| ·Relevant Research on Diplomatic Language | 第15-17页 |
| ·Vague Language | 第17-20页 |
| ·Definition of Vague Language | 第17-18页 |
| ·Relevant Study on Vague Language | 第18-20页 |
| ·Pragmatic Vagueness | 第20-22页 |
| ·Definition of Pragmatic Vagueness | 第20-21页 |
| ·Relevant Research on Pragmatic Vagueness | 第21-22页 |
| ·Critical Evaluation of the Past Research | 第22-23页 |
| Chapter 3 Theoretical Basis | 第23-27页 |
| ·Verschueren’s Adaptation Theory | 第23-25页 |
| ·Brown and Levinson’s Face Theory | 第25-26页 |
| ·Searle’s Indirect Speech Acts Theory | 第26-27页 |
| Chapter 4 Analysis of Pragmatic Vagueness in Sino-foreign Press Conference | 第27-58页 |
| ·Linguistic Variability of Pragmatic Vagueness in Sino-foreign Press Conference | 第27-49页 |
| ·Pragmatic Vagueness at the Lexical Level | 第27-39页 |
| ·Pragmatic Vagueness by Deixis | 第27-30页 |
| ·Pragmatic Vagueness by Hedges | 第30-34页 |
| ·Pragmatic Vagueness by Meta-language | 第34-37页 |
| ·Pragmatic Vagueness by Abstract Words | 第37-39页 |
| ·Pragmatic Vagueness at the Syntactic Level | 第39-49页 |
| ·Pragmatic Vagueness by Indirect Speech Acts | 第39-49页 |
| ·Adaptability of Pragmatic Vagueness in Sino-foreign Press Conference | 第49-58页 |
| ·Pragmatic Vagueness as Adaptation to the Mental World | 第50-52页 |
| ·Realizing the Self-protection State of Mind | 第50-51页 |
| ·Satisfying the Face Wants | 第51-52页 |
| ·Pragmatic Vagueness as Adaptation to the Social World | 第52-55页 |
| ·Obtaining Good Bilateral Relationship | 第52-53页 |
| ·Maintaining Good Image in International Community | 第53-55页 |
| ·Pragmatic Vagueness as Adaptation to the Physical World | 第55-58页 |
| Chapter 5 Quantitative Study of Pragmatic Vagueness | 第58-63页 |
| ·Data Collection | 第58-60页 |
| ·Research Process | 第60-61页 |
| ·Data Analysis | 第61-63页 |
| Chapter 6 Conclusion | 第63-66页 |
| ·Major Findings of the Research | 第63-64页 |
| ·Limitations and Further Research | 第64-66页 |
| Bibliography | 第66-69页 |
| Appendix: Papers Published in Three Years’ Study | 第69页 |
