No matter how complex a sentence is, it will become simpler and simpler as long as it is compressed layer by layer. Finally, what remains is the "backbone" of this sentence, that is, the subject-predicate object. In other words, the "backbone" is what remains after all attributes, adverbials and complements are compressed.

Extended data

Abbreviation step

First, understand the meaning of the sentence;

Second, mark the words that should be left (trunk and branches and leaves that must be left);

Third, check the pros and cons of right and wrong. For example, in the sentence "This grand project is a great project in the history of the world", the adverbial "in the history of the world" should be deleted. "Magnificent spirit" is a modifier and should also be deleted. "Great" is an attribute, but it is a necessary component in this sentence, so it should be kept. So it is called "this project is a great project" for short.

The meaning of a sentence can be divided into "surface meaning" and "deep meaning". As long as you understand the key words or words you don't understand, the surface meaning will be understood. The deep meaning is the meaning hidden in the text, which is excavated on the basis of understanding the surface meaning and combining the ideological content of the article, the background of the times or the psychological activities of the characters.