Years of civil war have 'drained' the country 'of' its resources. [=have used up the country's resources]
Nothing has been done to stop the 'brain drain' as more and more doctors move away from the area.
When the beans have cooked long enough to be tender, 'drain off' the water and set them aside.
(..) I promise. Jesus! I am late. I have to get to work. Lock the top lock the minute I close the door. And do not open for anyone. Bye. I love you. Are you alone? Okay. Move it! Do yourself to the drain. Tough guy. Do it. I will make it easier for you. Go ahead. Do it. (..)1993 Last Action Hero