0 a twin (= either of two children born to the same mother on the same occasion) who do not look exactly the same because they developed from two separate eggs: --
1 either of two people born to the same mother at the same time who came from different eggs, may be of different sexes, and do not always look similar --
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.