你自己理发前必看的大量实验，那些不靠谱,那些应和专业做的相反的，那些最快，风险最小的的方法
This video includes 8 different haircut experiments to show you what it would look like when you cut to different hair lengths. You may have heard advice from the professionals, we will show you as a beginner, for some of the practices, you may have to do the opposite in order to lower risk.
