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

It means the speaker feels stuck and does not know how to answer in the way the other person wants.
From Faded Threads, Episode 28
Someone is frustrated because they do not know what response the other person expects.
Use this in an argument when you feel pressured to say the right thing. It can sound defensive or exasperated.
Scenes unlock real expressions as you watch
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