This text uses a variety of explanations, including: Illustrate: Use specific examples to help the reader better understand the characteristics and characteristics of the object. 2. Comparisons: By comparing the characteristics and similarities of different things, the reader can better understand the characteristics of the object. Figurative explanation: By comparing the object of description to other things, the reader can better understand the characteristics and characteristics of the object of description. 4. General explanation: By generalizing the basic characteristics of the description object, the reader can understand the description object more quickly. 5. Citation: Citing other people's words or opinions to provide strong support for the object of the description so that the reader can better understand the object of the description.