成语词典和成语接龙，还包括趣味十足的小题目。

http://itunes.apple.com/app/chinese-idioms-linking-explanation/id444672026?mt=8

Comprehensive, Easy to use, Full of fun. includes Linking Game, Idioms Explanation and Quizzes.
成语词典和成语接龙，还包括趣味十足的小题目。