Hi Raanan.
Not sure about "Superlearning" but this really does work, and you don't need repeat it as long as you make your images clear. What you will need to do is base it on your own particular language database of the words and phrases that you have in your own language and in those in which your are proficient.
Here's what you do: Say, for example you want to remember the word "metamorphosis" in Japanese, which is "henshin". Break down the sounds of the words into components that mean something in your own language. For example, I took a picture of a hen (in my mind) and wrapped a long hairy caterpillar around the hen's shin. That way I have the sounds of the words and I even managed to link it to my symbol for metamorphosis which was a caterpillar. That was my choice, but you can use whatever images and sounds suit your background, language and culture.
Here's another one:
metabolism = shinchintaisha
I used my own body to remember this word:
shin - my shin
chin - well, you can have "chin" but the same word has a sexual meaning in Japanese, and research shows that anything to do with sex, death, humor and basically, more emotion than usual tends to lock in memories more easily.
tai - I imagines a necktie
sha - hmm, that was more difficult, but I know French too, so the word "chat" for cat which is pronounced "sha" went well. I had the cat standing on my head. I ran through the image a couple of times with the sounds and voila!
Can you imagine what I did with "kabushiki torihikijo" for stock exchange?
The thing to remember is that some languages you can link to your own easily. A Russian can see roots in Czech and Bulgarian. An Italian can see the roots in French and Spanish because they are closely linked. So in this case you learn be association.
Therefore, if you haven't got the links naturally, create them artificially.
One last one for Russian: Sobaka (pronounced "sabaka" more or less) means "dog". Someone I know thought up "It's a barker" to learn that one!
Bonne chance minna san!