Beta suggestion: Duolingo to use phrases with audio for new words first.
Is it possible to see if the good people at Duolingo can fix things so that when a word is introduced for the first time this is done using an example that has audio? This would be particularly helpful in the Ukrainian course, and the new alphabet means weer don't have v very many reference points for remembering a new word we don't know how to say!
I'm not very far into the tree but this is my only suggestion so far. It's a lot easier to understand the new words when they're isolated, they can get swallowed by the sentences. This could just be because I'm not yet used to the sound of spoken Ukrainian though.
Besides that, i wish we could play the audio at a slower speed like the TTS in other courses. However, i believe that it would end up distorted because it's a recording so I'm not expecting that to be introduced.