Cách sử dụng
The preamble is the introduction or beginning of a document or speech. It's the opening statement that sets the tone and purpose for what you're going to talk about. For example, the preamble of the US Constitution outlines the reasons why the Constitution was written and what its purpose is. So, if you're writing a paper or giving a speech, you might use a preamble at the beginning to give your audience some context for what you're going to say.