Speaker or Presentator 发言人或论文宣讲者

Mr ﹒ Chairman，excellencies and distinguished ladies and gentlemen ﹒ First of all，I would like to express my cordial gratitude to for inviting us／me to attend this conference ﹒ ［ to be used only in the presence of government high officials。我认为，与其重复我过去文章中列出 ......