The CEDICT project was started by Paul Denisowski in 1997 with the aim to provide a complete Chinese to English dictionary with pronunciation in pinyin for the Chinese characters.
MDBG CC-CEDICT is a continuation of the CEDICT project.
CEDICT for Apple Dictionary based on CC-CEDICT project.
Adapted to Apple Dictionary by Yuri Yuriev.
To install just unzip the file to /Library/Dictionaries.