"I understood what you just said."
Translation:J'ai compris ce que tu viens de dire.
April 18, 2018
"Ce que" is indefinite. It refers to an unstated or unspecified thing or idea.
- J'ai compris que tu viens de dire quelque chose. = I understood (the fact) that you just said something.
- J'ai compris ce que tu viens de dire. = I understood what you just said.
As for the recent past, (to have just done something), the construction is
- conjugated venir + de + infinitive