**Expanded Article**:
This is a rather concise article. It indeed requires some rewriting and expansion. The current state of the article is quite basic and lacks detailed information. By rewriting it, we can enhance its clarity and comprehensiveness. Expansion will involve adding more specific details, examples, and explanations. This will make the article more engaging and useful for the readers. We need to carefully analyze the main points of the original article and think about how to develop them further. With proper rewriting and expansion, the article can become a more valuable piece of writing.