Before you can begin to develop database applications, you need to understand the basic concepts.
在开发数据库应用程序之前，需要理解它的基本概念。
A contract to develop the database will be awarded next month.
开发数据库的合同将在下个月签署。
It needs to build up the database and application to develop this system.
开发该系统包括数据库的建立与维护以及应用程序的建立。
It needs to build up the database and application to develop this system.
开发该系统包括数据库的建立与维护以及应用程序的建立。
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