Talking too rapidly;
语速太快;
Speaking in a monotone;
声音单调;
Using too high a vocal pitch;
声音尖细;
Talking and not saying much;
“谈”得太多，说得太少;
Presenting without enough emotion or passion;
感情不充分;
Talking down to the audience;
对观众采取一种居高临下的姿态;
Using too many "big" words;
夸张的词语使用得太多;
Using abstractions without giving concrete examples;
使用抽象概念而不给出事例加以说明;
Using unfamiliar technical jargon;
使用别人不熟悉的技术术语;
Using slang or profanity;
使用俚语或粗俗语;
Disorganized and rambling performance;
演讲无组织，散乱无序;
Indirect communication i.e. beating around the bush;
说话绕弯子，不切中主题;
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