효과적

To persistently aim for or try to reach a goal, ideal, or value. It implies a long-term endeavor toward something abstract like happiness or profit.

To be timely or opportune; being appropriate for the current time or situation.

To be sudden, rapid, or sharp. Used to describe a change that happens very quickly and with great intensity.

To strictly adhere to or maintain a position, principle, or opinion without changing it.

Absolutely necessary or essential; something that cannot be omitted or ignored for a specific purpose or state.

To be different or distinct from each other. It is a formal term used to describe disparities in opinions, data, or qualities.

A target or specific result that one intends to achieve.

To be enough or adequate in amount, quality, or degree for a particular purpose.

Including all or nearly all elements or aspects of something; wide-ranging or comprehensive.

A thing that blocks one's way or prevents or hinders progress. Used in academic contexts to discuss challenges in development or learning.