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- 21世纪COE计划COE Program for the 21st Century
- 世纪century
- 布什总统说他计划全面扩充军队以应对21世纪的挑战。President Bush says he wants to expand the overall size of the military to meet the challenges of the 21st century.
- “面向21世纪教育振兴行动计划”，是跨世纪中国教育改革和发展的蓝图。This Action Plan is a blueprint for China's cross-century educational reform and development.
- 21世纪the 21st century
- 21世纪初early 21st Century
- 21世纪桃21st Century peach
- 21世纪议程Agenda 21 (the international plan of action adopted by governments in 1992 in Rio de Janeiro Brazil)
- 新加坡：21世纪的新威尼斯Singapore: A New Venice of the 21st Century
- 21世纪大学英语Twenty - first Century College English
- 金泽21世纪美术馆21St Century Museum of Contemporary Art, Kanazawa
- 21世纪社会主义21st - century socialism
- 21世纪能力素质AbiliW and Quality in 21st Century
- 中国21世纪能源政策Oil for the Lamps of China: Beijing's 21st-Century Search for Energy
- 21世纪的客家文化Hakka Culture in the 21 century
- 21世纪风力发电前景Prospect of Wind Power Generation in the 21st Century
- 21世纪初的南亚形势Situation of South Asia at the Beginning of 21st Century
- 论21世纪防火安全问题Discuss fire safety problem of 21 century
- 走向21世纪的电力测量Electric Power Survey Move Toward 21th
- 21世纪的公共服务。Public Service for the 21st Century (PS21) .
