causa
Translation
cause!, (you-formal) cause, (you-formal) arouse
Todavía no saben la causa de la crisis nacional.
They still don't know the cause of the national crisis.
Desafortunadamente, no saben la causa del fuego.
Unfortunately, they don't know the cause of the fire.
Inmediatamente supieron la causa del accidente.
They immediately knew the cause of the accident.
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