Learn American English Pro HD 出国旅游商务外贸必备英语 日常用生活口语对话专业版
iOS Universal Education
Learn American English is designed to help native speakers of any language speak better English. Over 300 of the most-used American English idioms and phrases are presented in engaging dialogue, with plenty of usage examples, illustrations, and lots of exercises -- with convenient answer key -- to help you learn the material.
iOS7 bug fix