0 the end of a race when the competitors are so close that a photograph has to be examined in order to discover who has won --
1 a race in which competitors finish so close together that a photograph must be examined to decide who won --
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.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.