单词	双重牵伸
释义	同双重牵伸--穿综
随便看	database data communication--dbdc database/data communications database data communication，dbdc database data model database data name database data set database--db data-based decision making database declaration database definition database definition file database definition language database definition language，ddl database definition processor database description database description generation database descriptor module database design database designer database development database device failure database diagnostics database diagrams database directory data base disaster