필수적

An educational talk or presentation delivered to an audience or class, especially at a college or university.

The act of being present at a place, such as a school, meeting, or event. It is often used to track attendance.

The successful completion of a course of study at a school, college, or university, and the ceremony associated with it.

To officially record one's name on a list for a specific purpose, such as enrolling in a school, signing up for a class, or joining an organization.

To take part in an event, activity, or group. Very useful for IELTS topics regarding research studies, sports, or social activities.

The opening part of a book, speech, or essay that introduces the main topic and provides context.

The main body or principal part of a speech, book, or essay, where the main arguments and details are presented.

The act of making something clear and easy to understand. It involves removing ambiguity or confusion from a statement or concept.

To make a general statement or form a general principle from specific facts or instances. It involves applying a specific finding to a broader group or context.

To rebound or bounce back after a period of decline. It is very useful for describing a change in trend where a downward line starts to go back up.