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;
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