How the word "русский" is translated into English
Я учу русский язык.
I'm learning Russian.
Ты понимаешь русский?
Do you understand Russian?
Это очень вкусный русский борщ.
This is a very tasty Russian borscht.
"русский" is in the lesson "Origin" (Level 17), along with 14 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.
