0 used when you are giving a choice of two or more things -- или … или
1 one of two people or things when it is not important which -- тот или другой, любой (из двух)
2 both -- оба, и тот и другой
3 used in negative sentences to mean that something else is also true -- также, тоже (в отриц. предл.)
Oocytes surviving the injection were either cultured without further treatment or exposed to ethanol solution to induce parthenogenetic activation.
The selection of a single lexical candidate is thus either random or based on frequency or familiarity of the lexical forms.
The starting point for each part is either a random or a previously stored sound.
One cannot constrain eternity to either the past or the future.
All of the other parties either did not believe in consensus, or they were unsure.
Either the grapheme that is doubled is replaced by another grapheme, which then undergoes doubling, or the doubling feature itself is misordered.
Recall that a feature structure can be represented either as a graph or as a set of path value and path equivalence constraints.
While refusing the role of narrator, he does not accept that of cultural critic either.