Learn what "you've been in there all day" means, when people say it, and how to use it naturally in English.

This is a complaint or observation that someone has stayed inside for a long time.
From Billionaire’s Betrayal, Episode 41
Someone comments that another person has been inside the room for the whole day.
Use it when you want to point out that someone has been locked away or unavailable too long. It can sound nosy or annoyed depending on tone.
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