Why did Lu Xun write: "There are two trees in my backyard, one is a peach tree and the other is a peach tree".

Lu Xun wrote: "In my backyard, you can see two trees outside the wall, one is jujube and the other is jujube." It's someone else's prank. It comes from Lu Xun's gt; In a word, weeds (prose) are roughly compared with jujube trees as revolutionary comrades and heroes. The empty sky on the jujube tree is very high, very high. Lu Xun had never seen such a high sky, which showed that the situation was chaotic at that time, and there were only a few revolutionary comrades and heroes in this high sky. So I wrote a jujube tree and a jujube tree. I think it's actually missing. This shows that there was a time.