¿Cuál es la diferencia entre stopgap y expedient ?Puedes dar oraciones como ejemplo.

Something that is "expedient" is something that's convenient. Oftentimes is used to reference something that may be immoral or illegal because it's easy to do.

Sure, throwing your trash out the window is an expedient way to clean out your car. But, it is also illegal.

Stop gap refers to something put in place until something better can be used.

The plastic sheeting was just a stop-gap measure to keep the rain out until the window could be repaired.

Seeing how powerful the storm was, it was expedient to just pull over until it passed rather than to endanger my family.