Cách sử dụng
The word 'insoluble' means something that cannot be dissolved, melted or solved. It is usually used to describe a problem or a question that is difficult to understand and cannot be solved easily. For example, a mathematical equation may be insoluble if it cannot be solved using the available formulas and methods. Similarly, a conflict between two people may be insoluble if they cannot find a way to resolve their differences. This word can also be used to describe a substance that does not dissolve in water, like oil or certain minerals.