Da Da, I would like to ask if the yellow font is silk-screen printed?

Professional, rigorous

Great!

The current water use is indeed a problem in many places.

Support Lao Yan!

After reading your work, I dare not reply easily. I am worried that my vulgar language will tarnish the rare works in the world. But I still replied, because I think if I can't leave my footprints behind such wonderful works, it will be a pity for my life. Please forgive my selfishness