Ratings & Reviews performance provides an overview of what users think of your app. Here are the key metrics to help you identify how your app is rated by users and how successful is your review management strategy.
百乐汇（Sounds Fun）一款集结吉的堡美语系列所有书籍的CD音档及律动歌曲动画的一款APP。让学童透过移动端的下载使用。能够达到随时学、随地学的情境。让听说美语更方便，学习成效更显著。
