他们想要介绍世界各地人们交流和表达自己的方式。
They want to introduce the way that people communicate and express themselves around the world.
口语可以发挥各种重要的作用：说服或鼓舞人心、传达信息、表达敬意、娱乐，或者简单地介绍某人或某物或接受某物。
The spoken word can handle various vital functions: persuading or inspiring, informing, paying tribute, entertaining, or simply introducing someone or something or accepting something.
人们通常会犯这样的错误，通过感谢介绍人和表达他们在这的喜悦来开头。
People often make the mistake of starting speeches by thanking the introducer or expressing their happiness at being there.
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