Phrases Asking for Clarification

That's not entirely clear to me.

C1

Meaning

Expressing some level of incomprehension.

Example sentences

John: The new algorithm is highly efficient.

Alice: That's not entirely clear to me. Could you explain it in simpler terms?

John: Basically, it processes data much faster than the old one.

Alice: Okay, I think I get the gist, but still, That's not entirely clear to me. Maybe a practical example would help.