0 used to describe a place where people can go, usually to get help or advice, at any time without making an appointment (= an agreed date and time): --
1 to come for a visit, esp. without having received an invitation for a specific time: --
Drop in whenever you’re in the neighborhood.
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.