Most of them were extremely poor and couldn't read or write.
This is made up of people that cannot read or write.
Children listen and speak well before they can read or write.
Almost one billion were never taught to read or write.
Hence, it will not respond to any read or write operation.
No read or write access to the file system.
Can barely read or write his own name and don't care.
Apenas sabe leer o escribir su propio nombre, y le da igual.
He's not a child who can't read or write.
El no es un niño que no puede leer o escribir.
Only a small number of the boys could read or write.
Solo un pequeño número de los niños sabía leer o escribir.
I told him because you didn't know how to read or write.
Le dije que no podía porque tú no sabías leer ni escribir.
No matter how hard he tries, he just cannot read or write.
No importa que tan duro lo intente, no puede leer ni escribir.
Some can barely read or write in their native language.
Algunos apenas saben leer o escribir en su idioma natal.
Far less when many people were unable to read or write.
Menos aún cuando muchas personas no sabían leer ni escribir.