I noticed Japanese added to translate function, and tried it. After did it, I saw weird Japanese sentence. English translation is so useful, but Japanese translation...

Sry Stray, I believe the best option to translate german is really english.
I can't say anything about the translantion in Japanese, because it looks like "Memory" for me, hehe.

Japanese is said difficult language, so I think also translation is difficult...

Well, I think the problem is that Japanese uses a completely different Grammar than German and the word order is also different. Furthermore Japanese words have more different meanings than German words. It's the same with English, but English is an international language. So the translation functions are better.
I think, it's just unusual to translate German to Japanese .

hav u tried chinese? thats...weirder!