I'm sure I made a comment about West Coast hip-hop fans but I think it may have been deleted because it's offensive to that well-known racial subdivision. I'm afraid West Coasters (and most of what has been laid down post-1996) are indeed wack. I'm sorry if that violates policies on racial harmony. Having said this I may have commented elsewhere and that's why I can't see my comment.
What aspect of the pronunciation is "not quite right", in your opinion?
This is a recording of a native Irish speaker reading the sentence, it's not a computer voice, so it's not simply a question of changing the "voice", you'd have to get a different speaker, and every speaker is going to be different, and even the same speaker will probably sound slightly different if you recorded them at different times.
You can hear two different male voices with noticeably different pronunciations of mairteoil here: https://www.teanglann.ie/en/fuaim/mairteoil
(Edit:It looks like mairteoil has been pulled from the Pronunciation Database since I made that comment).
Take a screenshot showing the error, and submit it with a bug report, including full details of how you are using Duolingo. Are you using a web browser, and if so which one. Are you using an app on a mobile device, and if so, which version of which app, on which device?
No, they have not all been used for "they like". Only is maith leo has been used for "they like".
Is maith léi aisteoirí means "She likes actors".