[pī xì dǎo kuǎn]   

批    郤    导    窾    批：击；郤：空隙；窾：骨节空处。从骨头接合处批开，无骨处则就势分解。比喻善于从关键处入手，顺利解决问题。

批：击；郤：空隙；窾：骨节空处。从骨头接合处批开，无骨处则就势分解。比喻善于从关键处入手，顺利解决问题。

Cut the bones between the joints and make use of the momentum to decompose the boneless parts

批亢捣虚    批砉导窾    批风抹月    批郤导窾    批逆龙鳞