The model consists of four layers - DDL, DML, DPL and CL.该模型分为数据定义层DDL、 数据操纵层DML 、 数据显示层DPL和控制层CL四层, 这里重点阐述了DDL和DML层.Availability of database definition language ( DDL ) and database manipulation language ( DML ) in DAO ...
The shores are strewn with wrecks.海岸上满布失事船只的残骸.The hurricane caused many wrecks.飓风造成了许多船难.Cruiser sized modules will no longer drop in Serpentis battleship wrecks.天蛇战列舰将不再掉落适合巡洋舰使用的装备....