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After reading Teacher Mengman's narration about "the prosperous times from Kaiyuan to the Anshi Rebellion", my deepest feeling can be described in eight words: prosperity is like a dream, and alarm bells are ringing. The huge gap from the peak in an instant will make people sigh and ponder for a long time. The emotions told by Teacher Mengman are rich and colorful, and the storyline is touching. It is very touching to readers. I like it very much!