Please answer me! Times acceptable to recompress to MP3?

How many times can I recompress an audio file into MP3 - It mean I have a MP3 File, then I cut, paste some audio and then save it into MP3. This is a speech audio. And I only care about the information of the speech

Well if you are just adding extra audio without re-encoding, I suppose you could do this as many times as you want without losing quality. But re-encoding a non-original source over and over will lose quality. But then again, its only speech and doesn’t need to be perfect.