答案:Public speaking is the process of speaking to a group of people in a structured, deliberate manner intended to inform, influence, or entertain the listeners.
Conversation is a form of interactive, spontaneous communication between two or more people who are following rules of etiquette.
There are three key differences that set public speaking apart from conversation: organizational structure, use of formalized language, and method of delivery.
Speeches involve thoughts that are logically organized and structured, whereas conversation may wander around subjects.
Speeches use formalized language, while conversation may use slang, profanity, or poor grammar.
Speeches are often delivered in deliberate, intentional settings and contexts, whereas conversation may arise spontaneously.