演讲技巧（1）：公共演讲的禁忌

  Nos in public speaking:
   1.Talking too rapidly;
   2.Speaking in a monotone;
   3.Using too high a vocal pitch;
   4.Talking and not saying much;
   5.Presenting without enough emotion or passion;
   6.Talking down to the audience;
   7.Using too many "big" words;
   8.Using abstractions without giving concrete examples;
   9.Using unfamiliar technical jargon;
   10.Using slang or profanity;
   11.Disorganized and rambling performance;
   12.Indirect communication, i.e. beating around the bush.