As the saying goes, cattle: 1. Cattle plow the fields and horses eat grain. Commentary: Cattle plow hard, and horses eat rice alone. It is a metaphor for being treated unfairly, suffering and enjoying happiness. 2. A horse's mouth is stuck in the cowshed. Description: Cattle and horses are fed in different slots, and the horse's mouth appears in the cowshed, which means it is redundant. Tell people not to talk. Cowhide is not blown, and trains are not pushed. Explanation: it means don't talk big out of thin air, but look at the real skill. Cows don't know the horns, but horses don't know their faces. Explanation: For example, people who have no self-knowledge do not agree with their obvious shortcomings.