Translation:When are we going to drink beer?
This is a documented site wide bug that just began appearing several weeks ago. You're correct that it disables a really helpful feature, and the Duolingo team is doing its best to fix it as soon as possible. To get around it, I just right-click on a character in the sentence and select "search with Google" or "look up" if I need to be reminded of its pronunciation.
I've been using this app for two months now and I can tell this is SO frustrating and annoying!!!! Their English translations are incredibly bad and confusing. Dudes you should ask a native speaker to review them for you, otherwise your users won't learn a damn thing because of your silly grammar mistakes.