单词	裂缝--破洞
释义	破洞；裂缝vein
随便看	universal modular tree universal module universal mooring chock universal motor universal multiple-octet coded character set universal multiprogramming system universal multiprogramming system，ums universal naming convention universal naming convention path universal naming convention{= unc} universal navigation computer universal navigation computer，unc universal negative universal negative judgment universalness universalnesses universal network universal numbering system universal numerical interchange terminal universal numerical interchange terminal--unit universal numerical interchange terminal，unit universal object universal of discourse universal operating system universal or extreme dependence