1, "Fluency in English": Speak English fluently, focus on the iPhone version of "English", push authentic American English conversations every day, real-time voice scoring technology from Silicon Valley, and dialogue games;

2. Encyclopedia of New Concept English: The iPhone version of Encyclopedia of New Concept English comes from a set of English textbooks jointly published by Foreign Language Teaching and Research Press and Pearson Education Publishing China Co., Ltd. As a world-famous English course, the iPhone version of Encyclopedia of New Concept English is rigorous, scientific and rigorous, practical and interesting.

3. "Dona learns English": Dona learns English for iPhone.