单词	distance of knowledge
释义	distance of knowledge 知识距离
随便看	background random process background ratio background operation background optical density background or bias-include noise backgroundpage background page background paging background painting background panorama background paper background parameter Background parity check in progress background partition background partitionBG Background Patching background pattern background perception model background periods background photon fluctuations background picking-up Background picture Background picture and filename appearance Background picture for this folder background plane