For example, in order to explain things or things, people don't quite understand the truth, so we should give some examples that are both easy to understand and representative.
These figures show that in order to be more convincing and accurate.
Classification description divides things into several parallel aspects according to their shapes, properties, causes and functions, which makes readers more clear.
Interpretation is to explain the shape, structure, causes, uses, etc. Explain how people seem to feel at the scene.
Definition description definition is to give an exact explanation of the essential attributes of things or the connotation and extension of a concept.