Learn what "i don't know" means, when people say it, and how to use it naturally in English.

It means the speaker is confused but urgently wants to search for a missing person.
From One Night, One Forever, Episode 51
He says he does not know what to do, but the group must find her.
Use this in urgent situations when you need help finding someone. It is emotionally charged and more natural in emergencies than in everyday speech.
Scenes unlock real expressions as you watch
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