0 the surface from which coal is cut --
1 the surface in a mine from which coal is cut --
2 doing the work involved in a job, in real working conditions, rather than planning or talking about it: --
Those at the coalface of the business may occasionally lose patience with management theories and abstractions.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.