"When designing and writing this book, I was very ambitious. However, execution is painful, mental, material and physical. I'm not sure I can finish it Even if I am lucky enough to finish it, whether it is good or not is another question. It's a bit ungrateful to write millions of words at ease these days. Forget it, don't say anything! April 34 1 day, on the swing. " (Quoted from the preface of Four Generations under One roof)
The "34 years" in the preface refers to the 34 years of the Republic of China at that time, which should be1911+34 =1945, so it was the 1940s.