1, meaning: "dragons and snakes mixed" is the original meaning of dragons and snakes mixed together, the metaphor of good people and bad people mixed together, but also can be used to describe things good and bad mixed, difficult to distinguish. The original meaning of "fish and dragons mixed" is fish and dragons mixed together, which is a metaphor for bad people and good people mixed together, the composition is complex, and can also be used to describe things that are good or bad, difficult to distinguish.

2, focus: "dragons and snakes mixed" more emphasis on the true and false, superiority and inferiority of mixed, emphasizing the blurred boundaries between good and bad. "Fish and dragons mixed" more emphasis on the mix between good and bad people, emphasizing that there is no clear line of demarcation in the crowd, good people and bad people have.

3. Usage: "Dragon and snake mixed" is generally used to describe the mixed state of people or things, such as "this team is a mixture of dragons and snakes, good and bad". "Fish and dragons mixed" is more often used to describe the complexity and uncertainty of people or things, such as "this market is mixed, be careful to choose".