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 ...
俱乐部已经把会议日期改到1月22号,星期六。The club has moved its meeting to Saturday, January 22nd.卡翁达总统兑现了他的承诺,宣布了全民公决的日期。President Kaunda fulfilled his promise of announcing a date for the referendum.截止日期之后报名参赛的人将不予考虑。Any entry arriving a...
蒙特利尔将要开展市政设施的翻新改良工程。The retrofit program will be carried out at the Montreal facilities.这些设备经过大幅度的改良,都让人认不出来了。The facilities have improved beyond all recognition.这样高的产量主要是通过改良耕作方法取得的.These high yields have been achieved ...
He succeeds by dint of sheer hard work.他完全是凭借着努力工作取得了成功。A decisive person acts quickly and often succeeds.果断的人行动迅速,常常成功.She's the type of person who succeeds anywhere.她是不论到什么地方都会飞黄腾达的那种人....
They live high in the Andes, in small and dispersed groups.他们零星散居在安第斯山脉的高处。The rainy season in the Andes normally starts in December.安第斯山区的雨季通常在12月份来临。an arduous journey across the Andes翻越安第斯山脉的艰苦之行...