原则

To put people or things into groups based on their similarities; to categorize.

To circle around something or to center a discussion or activity around a specific topic.

To use other people's experiences, methods, or works as a reference to improve one's own work. It involves learning from the success or failure of others.

The most important parts or aspects of something; key points.

To be equivalent to or equal to something in value, amount, or meaning. Used to explain unfamiliar units or scale in IELTS tasks.

A person who takes part in something, such as an experiment, a meeting, or a competition.

To choose to use or follow a method, idea, or system; to adopt for use.

To give a brief summary or general account of something; a summary.

To analyze and explain something in detail, often by breaking it down into its component parts. It is commonly used for explaining complex texts, data, or technical problems.

To move something or someone from one place, person, or state to another.