Self-destructive thinking naturally occurs, grows and disappears; Describe the natural development, no one asked.
Knowledge expansion: Idioms show the ability of Chinese to express huge and rich connotations and semantic integration. Just a few Chinese characters often contain a history, a story, an allusion, a truth and a philosophy, which are naturally formed in the evolution of history. Almost every idiom has its origin. The culture and history of every dynasty and generation are preserved in idioms, which makes idioms have distinctive cultural characteristics and characteristics of the times. Those who are familiar with idioms and allusions will vividly reappear in front of them as long as they read idioms; People who are unfamiliar with history will also understand the extended meaning of idioms.