I went to take pictures in the field today, and I just came back and found that there was a problem with the typography.

I quickly revised it again.

Anyway, why is the click recommendation so low, I don't know how to publicize, I don't think I'm embarrassed to let me go to others to advertise, after all, it's a bit annoying to review other people's books.

It's been a bit busy lately, but I'm still working on an update