After read pages 17-18of The third ear

 I think the author used method of LearnEnglish is 一个盒子两条路，身心法训练，看老师的嘴形学发音，一些胶水词，万能钥匙，一些场景对话练习，alright? 
 If you learned it but you don’t use it for a long period of time , you will lost it fast. Can not keep it with you. 
 Today , The author speaks fluent Mandarin and Cantonese. Why? Because by his job. He have to speaks everyday with the customers for his job. Very day practice three times or five times . It will be fluent in any one languages. 
 The article talks about very simple. It hasn’t have more information. Before I said something a lot . I don’t know why, this time I can not write down a lot words.