(1) From the dragon's head to the dragon's tail, the terrain as coherent as a vein is called "vein". (2) metaphor of the origin of people or things, or the cause and effect of things. Also known as "dragon knot pulse"

A group of dragons without a leader. Metaphor without a leader, it is impossible to act in unison.

At first, it described the majestic mountains, and later it also described the powerful and flexible strokes of calligraphy.

Tigers seem to have wings. Metaphor means that powerful people get help and become more powerful.

Try to keep the tiger away from the original hill. Metaphor uses tricks to make the other party leave the original place, so as to take the opportunity to act.

You can't ride on the back of a tiger. It is difficult to do one thing, but the situation does not allow you to give up halfway and be in a dilemma.

Metaphor imitates according to appearance.