https://online2.tingclass.net/lesson/shi0529/0009/9907/346.mp3
https://image.tingclass.net/statics/js/2012
deep down 在内心深处，本质上，实际上
I have so many friends, but deep down, I still feel lonely.
我虽然有很多朋友，但在内心深处还是感觉到寂寞。
Deep down, he is just a little boy.
在内心深处，他只是一个小男孩。
疯狂练习吧!
