Difference between idea and explanation in Korean
생각·해석

생각idea
An idea is a thought in your mind, like a plan, answer, or opinion. In Korean, 생각 means an idea or what you think. You can use it at school when you share ideas in class or tell someone your opinion.

해석explanation
This word means the explanation or meaning of something, such as a sentence, poem, picture, or math problem. In school, you hear it when a teacher explains a text or when students talk about what something means. It can also mean one person's understanding, so two people may not agree.
The difference
생각 is your thought or opinion in general. 해석 is your understanding of what something means, so different people can have different 해석.