This sentence comes from Zhiqiang Chi's song "Sorrow, Sorrow". The lyrics are very short: I am wandering in the streets, holding a wowotou in my hand, and there is not a drop of oil on the plate. How painful prison life is, step by step.

Zhiqiang Chi's version of Sorrow, Sorrow is one of the songs written by Zhiqiang Chi during his imprisonment, which was released on 1987. Composition, arrangement, lyrics, singing and MV are all directed by Mr. Zhiqiang Chi. Then Mr. Zhai Huimin went on to cover it.