1.He is too well known to require my introduction.他太有名了，而不需我作介绍。
2.I want to welcome you all to the World peace Symposium.欢迎大家参日世界和平研讨会。
3.Mr. Smith is so famous that any introduction would be superfluous.史密斯先生名气很大，任何介绍都是多余的。
4.It is my pleasure to introduce the keynote speaker for tonight, Dr. Smith.很荣幸介绍今晚演讲的主要来宾，史密斯博士。
5.We’re all anxious to hear Mrs. Smith’s remarks, so let us all welcome her to the podium.我们都渴望听听史密斯夫人的讲话，让我们欢迎她上台。
6.Mr. Smith, will you please give us the pleasure of hearing your speech?史密斯先生，不知有没有这份荣幸听听你的演讲？
7.We are sure to hear some informative lecturers, engage in some good profitable discussions, and make some friends, too.我们深信会聆听到让我们受益良多的演讲者发表演讲，参加一些有意义的讨论会，也交交朋友。
8.I hope that you will enjoy his lecture and get out of it something that will be a permanent enrichment of your lives.我希望你们会喜欢他的演讲，并且有所收获，对于丰富你们的生活会是长久不变的。
9.The distinguished speaker who will address us on “ A History of English” is the American linguist, Dr. Smith.向我们演讲“英语的历史”的杰出演讲者是美国语言学家史密斯博士。
10.Ladies and gentlemen, it is my great pleasure to present to you the great British lawyer, Mr. Smith.各位女士、先生，我很荣幸来为大家介绍英国大律师史密斯先生。
11.On behalf of the faculty and students of this university, I wish to say a word of hearty appreciation to Mr. Smith for the very instructive lecture he has just given us on the World.”史密斯先生刚为我们演讲“世界中的台湾”谨代表本大学全校师生，为这篇受益良多的演讲，向史密斯先生表示衷心的感谢。
12.We hope that all of you can attend every meeting as well as the lecture.我们希望大家都能出席每一场会议及演讲。
13.I am also very pleased and gratified to see such a large audience made up entirely of young people.看到这么多的听众全都是年轻人，我很高兴也很满足。
14.If you have any questions at any time, please feel free to see Miss Smith of the planning staff or me. We'll be happy to help you.任何时候如果有任何问题，请不必客气，来找企划组的史密斯小姐或来找我，我很会很乐意帮助你们的。
15.I'd like to take just a moment to introduce a special observer to our meeting today.我想花一点点时间来介绍我们天成会议的特别观察员。
16.Good-bye, and safe traveling.再见了，祝一路平安。
17.I hope to see all of you here next year.我希望明年在这里再看到大家。
18.I want to take a minute to thank the keynote speakers, Mr. Smith and Mr. Williams.我想用短短的时间向基本方针演讲者史密斯先生与威廉斯先生表示感谢之意。
19.It hardly seems that the five days given to this conference have passed already.似乎很难相信开这个会五天就这样过去了。
20.Prof. Smith will make a short address to all of us giving his thanks and his impressions of the convention.史密斯教授向我们大家简短说几句话，表示他的谢意以及对会议的感想。