集中

A basic structure that supports or contains something, such as a building or a theory.

Facts, statistics, or examples used to support an argument or claim in writing or speech.

A category or class of things that share similar characteristics; often used in philosophical or scientific classification.

The most central and important part of something; the essence or true nature of a matter, as opposed to its appearance.

A body of written works, documents, or records that provide information or evidence about a subject. Crucial for IELTS Reading and academic research.

A particular part or feature of a situation, idea, or problem. It is used to categorize different sections of a discussion.

The importance or value of something, or the intended meaning of a word, action, or event.

Something that is known to have happened or to exist, especially something for which proof exists.

The function, effect, or role that something has in a particular situation or system.

A formal account of an investigation or observation. As a verb, it means to give a spoken or written account of something.