0 to ask someone to come to help in a difficult situation: --
A new team of detectives were called in to conduct a fresh inquiry.
1 to ask someone to come to help with a difficult situation: --
They called in the department which specializes in investigating credit card fraud.
2 to officially appoint someone to manage the finances of a company that cannot pay its debts: --
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.