游刃有余 yóurèn-yǒuyú
[do sth.with skill and ease as one who handles a butcher's cleaver expertly ] 比喻做事熟练,解决问题轻松利落。语出《庄子·养生主》:“恢恢乎,其于游刃必有余地矣!”
就叫他兼了营务处的会办,他也游刃有余。——《官场维新记》