Your Honor Mr. Mayor ：Your Honon 同Your Excellency一样，用以尊称高级官员，“阁下”的意思

　　欢迎/开幕/闭幕词   welcome /opening/closing speech/adress

　　致开/闭幕词deliver/make an opening/closing speech

　　签字仪式signing ceremony

　　友好访问goodwill visit

　　宣布开幕 declare ……open ；declarethe commencement of……

　　宣布闭幕declare……the conclusion /closing of……

　　发表热情友好讲话make a warm and friendly speech

　　热情洋溢的欢迎词gracious speech of welcome

　　尊敬的市长先生Respected /respectable/honorable Mr.Mayor

　　陛下Your /His / Her Majesty

　　殿下Your/His /Her Highness/Excellency /Royal Highness

　　阁下YOUr/His /Her Hornor/Excellency

　　夫人Madam

　　东道国host country

　　值此……之际on the occasion of

　　以……的名义in the name of

　　由衷的谢意Heartfelt thanks