0 officially having the named position: --
1 to be necessary for someone: --
2 the person who has or had a particular official position: --
3 (referring to the present time) a person who has a particular office or position, esp. an elected one: --
4 necessary: --
[ + to infinitive ] It is incumbent upon (= necessary for) all of us to create a safe community.
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.