0 to learn as much as you can about something for a special reason: --
1 to study a subject as much as you can in a short period of time: --
She boned up on her Spanish before going to Mexico.
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.