This is the 16727th most frequent Korean word.
사진들을
"Photos" or "pictures" (plural, accusative form).
Here, '사진들을' is used as the object of the verb '정리했어요' (organized), indicating the pictures that were organized.
나는 사진들을 앨범에 정리했어요.
I organized the photos in the album.
In this sentence, '사진들을' is used as the object of the verb '보여주세요' (show), marking the photos as what the speaker is asking to see.
사진들을 보여주세요.
Please show me the photos.
Here, '사진들을' functions as the object of the verb '찍었어요' (took), referring to the photos taken during the trip.