Learn what "could this be" means, when people say it, and how to use it naturally in English.

It means the speaker is trying to connect a new clue with something mentioned earlier.
From Lost And Found, Episode 11
Someone wonders whether a clue is related to what Lumi mentioned earlier.
Use this when trying to figure out if a clue or event matches earlier information. It is too context-specific for a strong phrase page.
Scenes unlock real expressions as you watch
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