演讲应该让你的观众在引言部分就了解你的演讲信息，知道接下来你的演讲主要

Your speech should let your audience understand the message of your speech in the introduction and know what your speech will focus on next. Therefore, once you have the audience's attention, you need to start telling the purpose of your speech and explain that you will develop your speech in several parts.

A speech should allow your audience to understand the information of your speech in the introduction section and know what your speech will mainly revolve around. Therefore, after receiving the attention of the audience, you need to start explaining the purpose of your speech and explain how you will divide it into several parts.

The speech should let your audience know your speech information in the introduction and know what your speech will focus on next. Therefore, after you get the audience's attention, you need to start telling the purpose of your speech and explain that you will start your speech in several parts.