thanks for you reply, I guess this format is close. but there are some android apps that support this format,so i assume it's not impossible for goldendict to support it. some of the dict data may have been converted from stardict as you said. but some of dicts in my daily use seems to have no equivalent in other formats, such as Oxford English Dictionary,LDOCE 5th(including full-sized word and example pronunciation), Merriam-Webster Unabridge Dictionary, full sized English Wikipedia, etc.as of today, there are over 1400 dicts recorded here
http://pdawiki.5d6d.com/thread-104-1-1.html. thanks