0 to secretly become part of a group in order to get information or to influence the way that group thinks or behaves: --
A journalist managed to infiltrate the powerful drug cartel.
At about this time the new ideas about "corporate management" had begun to infiltrate (into) local government.
1 to become a member of a group or organization to secretly gather information about its activities --
2 (of water) to flow slowly down into the earth from the earth's surface, for example, through cracks in rocks --
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.