Speech, also known as speech or speech, refers to a kind of language communication activity in public, in which vocal language is the main means and body language is the auxiliary means, aiming at a specific problem, clearly and completely expressing one's views and opinions, clarifying things or expressing emotions, and carrying out propaganda and agitation.

Literature refers to books, periodicals and regulations with historical significance or research value. It is the final expression of scientific research and technological research achievements, and it is an important medium for people to acquire knowledge. The word "literature" first appeared in the Analects of Confucius Ba Shu.