pre-existing

常见例句

The goal of the study of multidatabase systems in to solve the issue of sharing all the information in these pre existing databases by preserving the investment in the building of these databases.
互联网络上的多数据库系统由联结在网络上的先期存在的多个高度自治的异构数据库组成。
A hive cannot exist without a queen.
蜂房不可无蜂王。
They seem to exist on a different spiritual plane.
他们似乎生活在不同的精神境界。
We can not exist without food or water.
没有食物和水我们不能生存。
Our future plans must mesh with existing practices.
我们未来的计划必须与当前的实践相合。
Matter can exist as a solid, liquid, or gas.
物体存在的形态有固体，液体，气体。