This is the 17077th most frequent Turkish word.
çevrileceğini
"The fact that it will be translated" or "that it will be turned."
The word 'çevrileceğini' is used here as the future passive form of 'çevirmek', meaning 'to be translated' referring to the book being translated into English in the future.
Bu kitabın İngilizce'ye çevrileceğini duydum.
I heard that this book will be translated into English.
Here, 'çevrileceğini' conveys the plan or notification that the surroundings of the windows will undergo some action, potentially figuratively or preparatively.
Evi temizlerken pencerelerin önünün çevrileceğini söylediler.
They said that the front of the windows would be cleaned while tidying up the house.
In this sentence, 'çevrileceğini' describes the intention to modify or adapt the subtitle's errors as part of a process.