"This is not my sweater."
Translation:Это не мой свитер.
I use an Android phone (LG) and find that enabling multiple keyboards gives me an EN/ES/RU toggle button on my visual keyboard, whixh visually changes the keytops from QWERTY to ЙЦУКЕН so I can learn the kирилский layout. Hope i used that correctly. Plus, the mic button is right there for speech-typing "Tim, it's Tom." - MAJOR time-saver.
English to Russian, Yes. It has a different language base. English is Latin-based. Russian is Slavic-based. Also it does not help seeing the letters, such as и and thinking it says "n", but actually it pronounced "i" or "e", depending on usage. Try and not think about English sounds, but keep sounding out the Russian characters.
On Android you can go to settings>language and input>samsung keyboard (underneath the words "samsung keyboard" it will say "english")>languages and types. Choose your language(s) and go back on duolingo. You should now be able to swap languages by swiping the spacebar. If not, restart your phone.