Yan 'an, what do you mean by pursuing old cows and broken cars?

Backward production conditions and slow development. In the poem "I'm looking for you in Yan 'an", "an old cow and a broken car" represents the backward production conditions and slow development speed in the past. This poem describes the history that Yan 'an, as the leading center of China's * * * production party, constantly pursued progress and development in a difficult environment during the China Revolution. Poetry, through the image of "an old ox breaking a car", expresses memories and reflections on backward historical periods, and also expresses expectations and longings.