價格：免費
檔案大小：34.6 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
A balance between a broad and controlled course
This series serves as a core while offering a broad range of vocabulary,topics and various text types to meet the different needs of the students.
A balance between authentic and modified language
All the oral and written materials have been modified and carefully selected to suit the student's level,so that a gradual development of the target language can be achieved.
支援平台：iPhone, iPad