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A milha zero é toda a preparação física e mental para realmente pôr o pé na estrada e percorrer a primeira milha!
Ricardo F. Bernardi escreveu:Good afternoon, my friend.
You should read:
Cf.: (1) https://www.englishexperts.com.br/forum/each-x-every-como-empregar-em-uma-frase-t4725.html
Depending on the context of your project, I believe you could say:
1) Mile zero is every / each physical and mental preparation to really hit the road and walk the first mile.
2) Mile zero is each physical and mental preparation to actually set foot on the road and cover the first mile. ("each" is used to enphasize someone's personal / private preparation; an example of self-preparation).
3) Mile zero is all the physical and mental preparation to really help someone to hit the road and give the first steps. ("all" refers to a set of preparations).
MILE ZERO X ZERO MILE
I believe "zero" is a classical example of postpositive adjective.
Elsewhere, postpositive adjectives are used to provide emphasis or to lend a poetic or an academic flourish to a line of text. There are a few English nouns that tend to take postpositive adjectives more often than usual. Things and matters are probably the biggest ones — for example, matters unknown, things innumerable.
In the previous examples, I considered the term Mile zero as a name of the set of physical and mental preparations.
The term Zero mile(stone) could also be used, however it will denotate something different, like "the starting point of something".
It is a technical term, specially for topography.
I hope we have helped.
(1) RODNEY, Huddleston, English Grammar: An Outline, CUP 1988.
(2) CINQUE, Guglielmo. The Syntax of Adjectives. Cambridge, MA: MIT Press. 2010.