
The Japanese sentence seems to be only a (second) part of the English one.

^ There are only two solutions I can propose.
1. Get a native speaker of Japanese to add the first half.
2. Chop the English into half "Because the methods of communication are determined by their cultures."
I could have a go at adding the Japanese myself, but I don't want to risk adding dodgy Japanese to WWWJDIC.

I added a new English translation. Now, #28213 can be unlinked.