價格：免費
更新日期：2019-05-28
檔案大小：15M
目前版本：6.1.9
版本需求：Android 4.1 以上版本
官方網站：mailto:nkimco@gmail.com
Email：http://ocodereducation.com/policy.html
聯絡地址：243 phan boi chau, Hue, Thua Thien Hue, Vietnam
Learn English Grammar with your android phone and test your grammar skill.
Learn English Listening on you phone whenever you have free time.
Practice your listening skill and test your listening skill.
Dictionary to look up.