PhoneticsThere are two sections in this app: vowels and consonants.To hear the sounds, click on the symbols that represent the sounds. Click on the right hand corner of each symbol to hear sample words that include the sounds.The voice consists of sound made by a human being using the vocal folds.This app helps you improve your English pronuncia…... 更新内容： 优化系统性能，体验更顺畅。