교과서

The lowest or most important part of something, from which everything else develops. It refers to basic principles or foundations.

Connection or linkage; the act of connecting different things, organizations, or ideas to work together or relate to each other.

The body of words used in a particular language or by a particular person; vocabulary.

To extract or select a specific part from a text, speech, or book for use elsewhere.

To aspire to, desire, or apply for a certain school, department, or job position.

To formally present information, ideas, or research results to an audience. It can also mean to release or announce official statements.

The act of providing a reason or incentive to do something; the psychological stimulus that causes a person to act.

To satisfy or meet a requirement, condition, or standard.

To grasp or understand the substance or nature of something clearly and thoroughly.

To be beneficial, helpful, or useful, especially in gaining knowledge or improving a situation.