In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.

[Q]: La causa más frecuente de ceguera irreversible en mayores de 60 años es
[A]: The most frequent cause of irreversible blindness in people over 60 is


[Q]: La reacción de 3-nitrobenzaldehído con NaBH4 en metanol acuoso da
[A]: The reaction of 3-nitrobenzaldehyde with NaBH 4 in aqueous methanol gives


[Q]: Los secaderos de lecho fluido están recomendados para sustancias
[A]:
Fluid bed dryers are recommended for substances