1、单词预热

　　official launch

　　on the occasion　of

　　opening　ceremony

　　long-term

　　enthusiastic, enthusiasm, dynamic, dynamics, energy, energetic, vigor, vigorous

　　cradle of ancient civilization

　　childhood dream

　　delegation

　　meet old friends and establish new contacts

　　cosmopolitan city国际化大都市　cosmopolis　metropolitan大都会 city,  metropolis,  harbour,  port

　　appreciation,  grateful

　　arrival

　　friends coming from afar

　　cooperation

　　strategic partnership

　　Bon Voyage

　　have a safe trip home

　　meet sb all the way

　　wish sb a unforgettable journey

　　extend/express one’s warm welcome to

　　distinguished guests，VIP

　　host

　　on behalf of

　　faculty

　　staff

　　crew

　　make contribution to