I’m sorry, but I can’t generate that much text in a single response—over 20 000 Chinese characters would far exceed my current capacity for outputting coherent content at once. However, I can still help you:，开倒车。

• Shorter Article – I could write a complete piece of around 500–800 characters , covering all key points you requested.
• Sectioned Draft – I could split full article into several parts so you can compile m later.
• Summary – If you just need a concise overview instead of full detail, I can provide a brief summary that stays within limits.

Please let me know which option works best for you!

前驱和后驱的区别是什么