0 to study a subject or situation carefully so that you know a lot about it and can deal with it successfully: --
It was obvious that she had done her homework and thoroughly prepared for her interview.
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.