九變復(fù)貫。知言之選。(《詩(shī)紀(jì)》云。變一作辨?!稹稘h書》武帝紀(jì)?!对?shī)紀(jì)前集》九。)
----逯欽立《先秦漢魏晉南北朝詩(shī)》先秦詩(shī)卷六----