summit 高层会议
A Western European summit was held in Bonn.
在波恩举行了西欧各国首脑会议。
charter n. 特许状, 执照, 宪章
The government chartered the new airline.
政府给这家新航空公司颁发了许可证。
pledge n. 保证; 誓言
The government should fulfil its pledge.
政府应该履行其诺言。
promote peace 促进和平
What does the United Nations do to promote peace and security?
联合国如何促进和平与安全?
boost economic co-op 加强经济合作