4744191
i am good in topics like math, physics, electrical engineering, comuter science, control, chinese history and taiwan studies. young people are also welcomed to talk about life, work, etc with me.
272
加关注
字幕
纪录片
古琴纪录片
纪录片解说
英文纪录片
大型纪录片
凤凰纪录片
字幕