Generally, most Web applications use relational databases to store and retrieve information.
一般说来,大多数Web应用程序使用关系数据库存储和检索信息。
Each of these examples USES databases to store, locate, and retrieve information dynamically.
这些示例,每个都使用数据库动态地保存、查找和检索信息。
A dictionary is like an associative array or hash: It USES key-value pairs to store and retrieve information.
字典类似于关联数组或散列;它使用键值对来存储和限制信息。
And I do that very precisely because it'll teach you a little bit about how easy or difficult it is to do it and what kind of information you retrieve from a dietary assessment.
我这样要求是因为,这能教给你,做评估的难易程度,以及你们能从饮食评估中得到何种信息
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