How to memorize words well? It is image association. You have to listen to Russian words, make an image of the words in your head, and repeat them in Korean at the same time to memorize them well. If you listen to Russian words and practice thinking and speaking in Korean at the same time, you will achieve good results.
What is the most important thing about this book? There are also mp3 audio recordings of 9,442 words in Russian and Korean (Russian 1, Korean 3 times, Russian 1, Korean 2 times, Russian 1, Korean 1 time). This made Korean 3 times and Russian 1 appear for listening training. You can memorize the words by listening to the mp3 files and repeating the Russian and Korean words. I hope that this book will be of some help to your conversational Korean.