reveal a photo(graphic)
The Spanish phrase 'revelar una foto(grafía)' translates to 'reveal a photo(graphic)' in English. The word 'revelar' means 'to reveal', 'una' means 'a', and 'foto(grafía)' serves to mean 'photo(graphic)'. Typically, the phrase can be used in the context of revealing or developing a photographic image from a negative or a digital file in a photo laboratory, or in wider contexts, to disclose or display a photo or an image to people. It is indeed an interesting phrase that helps understand the conjunction functions in Spanish language.
I have to develop a photograph from the vacation.
In this sentence, 'revelar una fotografía' means to process or develop a photo, a term often used in the context of film photography, which is common in Spanish. The speaker needs to develop a picture taken during their vacation.
My task today is to develop a photo I took yesterday.
This sentence is expressing a future action; the speaker has a photo taken the day before and their task for the present day is to develop this photo, again suggesting the speaker is likely involved in some kind of photography work or hobby where they develop their own photos.
Could you develop a photo for me, please?
In this case, the speaker is making a polite request for someone else to develop a photo for them. This could suggest that they don't know how to do it themselves, or perhaps they are just too busy to do it at the moment.