0 a type of bacteria that exists in several forms, some of which live in food and make the people who eat it ill: --
1 a group of bacteria, some types of which live in food and cause illness in people who eat the food, or the illness caused by this bacteria --
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.