1. Thirty-six strategies, walking is the best strategy: originally refers to being unable to fight the enemy, and running away is the best strategy. It mostly refers to getting out of difficult situations. 2. Three days of fishing and two days of drying the net: It is a metaphor for lack of perseverance in learning or doing things, frequent interruptions, and inability to persevere. 3. Everything is ready, all that is left is the east wind: It is a metaphor that everything is ready, except for the last important condition. 4. There is no way to heaven and no way to earth: to describe a desperate situation.