Eev (as in "eve") San Lo-rahn
Here's a breakdown:
* Yves: Pronounced "Eev" with a short "e" sound, like the word "eve."
* Saint: Pronounced "San" with a short "a" sound.
* Laurent: Pronounced "Lo-rahn" with the "a" sound like the "a" in "father" and a soft "n" sound.