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.
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