/lit/ - Literature

>>22027252
If he can read Greek you could insert Greek Unicode characters. If he's at the level where he's repeating pronunciation from a phrasebook then I'd write it down the way those books do it. I think I've seen "repeat a line from a tourist phrasebook verbatim to impress someone" a few times, it's a good gag.
Writing it in English and italicizing it can work if it occurs a lot and the reader has to understand it every time, but your case doesn't sound like that.
There are multiple valid ways to go about it and it depends on your overall style. So do whatever feels least bad.