I just thought of an idea that instead of maybe just highlight a new word and showing the translation, maybe have a question previewing that one that shows the word with a couple of pictures that one must choose the correct picture. I know you already have this kind of question, but I see it very rarely. And that way you'll have something visual to associate with every word you learn.

I realize that this will likely make the lessons twice as long, but I feel like it would help everyone learn the languages better (which is really why we're here anyway.)

As always thanks Duolingo staff!