Explain the difference between required rate of return and expected rate of return. If they are different at a specific point in time, what does that mean?

Required rate of return is the least amount of return an investor expects to get from a project.The expected rate of return is the profit or loss that an investor expects on an investment, it measures the potential of these summing outcomes.

I have the rates of return. I need help with if they are different at specific points in time and what that means.