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 ...
A guide gives a brief talk on the history of the site.导游简要地介绍了那个遗址的历史。This is a brief stop to take on passengers and water.这是一次短暂停靠，上上客，加加水。For a few brief minutes we forgot the anxiety and anguish.短短几分钟我们就忘记了焦虑与苦恼。...
The rainy days always depress me.雨天总是使我沮丧.I know he is too optimistic but I don't want to depress him.我知道他太过乐观了，但我不想令他灰心丧气。Small doses depress salivary and bronchial secretion and sweating.小剂量可抑制唾液分泌、支气管分泌及出汗....
In spite of success in such endeavors, Godalhi would not call himself a lawman.尽管他恪尽职守 、 屡立战功,但戈达尔伊并不认为自己是一名执法者....the 61-year-old lawman who headed the enquiry.那位主持调查的61岁的执法官Melvin Purvis is a square - jawed lawman who ...