The idioms and explanations about contact are as follows:

Cramming: It is a metaphor for not having contact at ordinary times and hurriedly pleading at the last moment. The latter is a metaphor for not being prepared at ordinary times and hurriedly dealing with it at the last moment.

Indissoluble bond: fate: fate. An indissoluble bond. A metaphor for a connection or relationship that cannot be broken away.

Don’t hear and ask: hear and ask: communicate with the news, communicate with the news. Refers to no contact or severance of contact.

No communication: refers to no contact or severance of contact.

Threading the needle: passing one end of the thread through the eye of the needle. A metaphor for connecting and wooing.

One call and the other: this: here. He: There. Call here, answer there. Describes close connections and coordinated actions.

East Ming and West Ying: means that all aspects are related and influence each other.

Penetrate gallop: penetrate: pass through, connect; gallop: run on horseback. Able to quickly integrate and understand related things.

Throughout ancient and modern times: through: through, through. Connect the present with ancient times.

Throughout the past and present: connecting the present with ancient times.

Irrelevant: means no connection at all.

Reciprocal causation: cause and effect are interconnected and transform into each other.

No contact with each other until old age and death: refers to no contact with each other and no exchange of information.

Inexhaustible: Thousands of threads, ten thousand threads. The original description is one after another, countless. Nowadays, it mostly describes various close and complex connections between each other.

Seeking truth from facts: starting from actual objects, exploring the internal connections of things and the regularity of their development, and understanding the essence of things. Usually refers to acting according to the actual situation of things.

Ten Thousand Thousand Threads: Thousands of threads, ten thousand threads. The original description is one after another, countless. Nowadays, it mostly describes various close and complex connections between each other.

Blood and flesh: connected to each other like blood and flesh. The metaphor is very closely related and cannot be separated.

Blood and flesh connection: Like blood and flesh, they are connected to each other. The metaphor is very closely related and cannot be separated.

Shake corresponding: far away; should: take care of. Contact each other and cooperate with each other from a distance.

Shaking and responding: contacting and cooperating with each other from a distance. Same as "response from a distance".

Response to each other from afar: Yao: far away; Ying: take care of. Contact each other and cooperate with each other from a distance.

Yao corresponding sum: Yao: far away; Ying: taking care of. Contact each other and cooperate with each other from a distance.

Constant sound consumption: sound consumption: news, news. It means to keep in touch and keep hearing from each other.

Music and politics: music: music; politics: politics. Music and politics are connected. It means that music is a reflection of social life.

Threading the thread through the needle: passing one end of the thread through the eye of the needle. A metaphor for connecting and wooing.

Shadows are inseparable from lights: Shadows are inseparable from lights. Without light there is no shadow. The metaphor is that the two are closely related.

From here to there: this: this; he: that. From this phenomenon to that phenomenon.

The bell rings and the chime rings: Chime: an ancient percussion instrument. After the bell is rung, the chime will chime. Metaphor that there is an inherent connection between things.