I would be glad if you show me some examples. Thank you.

I'm not sure that explanation is very helpful in practice though. You asked for examples though.Below, under, beneath indicate position in some way lower than something else. Below implies being in a lower plane: below the horizon, the water line. Under implies being lower in a perpendicular line: The book is under the chair. Beneath may have a meaning similar to below, but more usually denotes being under so as to be covered, overhung, or overtopped: the pool beneath the falls.