Translation:He is not my friend, he is my enemy.
I do not think we have a real word, If I had to translate it I would make something up przyjawróg?wrogaciel? ( both have little google entries- 9 , bur wrogaciel shows up in http://en.bab.la/dictionary/english-polish/frienemy
I think i found a bug. I got a "Tap what you hear exercise" but all the words to tap formed the sentence on the lines up above, and below in grey text there was "can't listen now" like it was a pronunciation exercise. I've nevere seen that before. I screenshotted it. If i can figure out how to link it I will.
Well, the "Can't listen now" button makes sense, cause if you're on public transport and don't have headphones, you can't really answer.
Now, the main issue is that the sentence was already created? I think that sometimes happens with long sentences, although this one isn't really that long...
Yes, the sentence was already created. If that happens to me again should I report it?
And you're correct about the "can't listen now" button. I was getting it confused with the "can't speak now" button, that can be found in the Spanish course. I was really confused because the Polish course does not do speaking exercises.