伐毛洗髓[fá máo xǐ suǐ]
词典cut the hair and wash the marrow of the bones -- to cast off one's old self
词典make a thoroughgoing change：伐毛洗髓。
词典do away with dust and dirt：伐毛洗髓。
词典remould oneself thoroughly：伐毛洗髓。
伐毛洗髓[fá máo xǐ suǐ]
cut the hair and wash the marrow of the bones -- to cast off one's old self; make a thoroughgoing change; do away with dust and dirt; remould oneself thoroughly