She wore a skirt that reached 'below' her knees. = The bottom of her skirt was 'below' her knees.
The temperature ranged from 5 'below' to 10 above. [=from −5 degrees to 10 degrees Fahrenheit]
That remark was 'below the belt'. = That remark really 'hit' (him) 'below the belt'.
(..) Maria: Brigitte Helm Epigram: THE MEDIATOR BETWEEN HEAD AND HANDS MUST BE THE HEART! Shift change. Deep below the earth's surface lay the worker's city. As deep as lay the workers' city below the earth, so high above it towered the complex named the "Club of the Sons," with its lecture halls and libraries, its theaters and stadiums. Fathers, for whom every revolution of a (..)1927 Metropolis