價格：免費
更新日期：2018-09-01
檔案大小：7.0M
目前版本：1.0
版本需求：Android 4.0.3 以上版本
官方網站：mailto:srustyapps@gmail.com
Email：http://srustyapps.blogspot.com/2017/02/privacy-policy.html
Concentration App
Power of Concentration
It is of the utmost value to learn how to concentrate.
To make the greatest success of anything you must be able to concentrate your entire thought upon the idea you are working on.
The person that is able to concentrate utilizes all constructive thoughts and shuts out all destructive ones.
The greatest man would accomplish nothing if he lacked concentration
