一、基本词汇

开幕/闭幕式 opening/closing ceremony
开幕词 opening speech/address
致开幕词 make an opening speech
友好访问 goodwill visit

阁下 Your/His/Her Honor/Excellency
贵宾 distinguished guest
尊敬的市长先生 Respected Mr.Mayor
远道而来/来自大洋彼岸的朋友 friends coming from a distant land/the other side of the Pacific
东道国 host country

 
宣布……开幕 declare……open
值此之际 on the occasion of
借此机会 take this opportunity to
以……名义 in the name of
本着……精神 in the spirit of
代表 on the behalf of
由衷的谢意 heartfelt thanks
友好款待 gracious hospitality
正式邀请 officioa invitation
回顾过去 look back on
展望未来 look ahead/look into the future
最后 in closing
圆满成功 a complete success
提议祝酒 propose a toast

二、词语扩展

1、政治词汇
亚太地区 Asian-Pacific region
建交 establishment of diplomatic relations between
互访 exchange of visit
外交政策 foreign policy
一贯奉行 in persistent pursuit of
平等互利 equality and mutual benefit
双边关系 bilateral relations
持久和平 lasting peace

2、贸易词汇
贸易额 trade volume
商业界 business community
跨国公司 transnational corporation
经济强国/经济大国/经济列强（视具体情况翻译）economic power

三、例句

1.我愿借此机会，代表我们代表团的全体成员，对我们东道主的诚挚邀请，表示真诚的谢意。
On the behalf of all the members of my mission, I would like to take this opportunity to express our sincere thanks to our host for their earnest invitation.
2.现在，我愉快地宣布第二十二届万国邮政联盟大会开幕。
Now, I have the pleasure to declare the 22nd Universal Postal Congress open.
3.我很荣幸地代表中国政府和人民向来自联合王国的代表团表示热烈的欢迎。
I have the honor to express this warm welcome on behalf of the Chinese Government and people to the delegation from the United Kingdom.
4.我谨向各位表示最热烈的欢迎。
I would like to extend my warmest welocme to all of you.
5.我预祝大会圆满成功！
I wish the conference a complete success!