But at this moment we cannot calculate the work item status because it may contain sub-work items, so we need to declare two global variables to store these values.
但是此时，我们不能计算工作项的状态，因为它可能包含了子工作项，这样我们需要声明两个全局变量，以存储这些值。
There's another subtle advantage, if you follow a pretty common practice to store HTML files in sub-directories.
如果您按照十分常见的实践将HTML文件存储在子目录中，则还有另一个小小的优点。
After 24 pages we reach a much better design, which mainly USES a map to store properties rather than sub-classing for each type of instrument.
在24页之后，我们看到了更好的设计，主要用map来存储属性，而不是为每种乐器类型建立子类。
Checks the quantity and quality of food received from the direct market, food store room and other sub-departments.
对于从市场直接采购的食物，仓库及其他部们要严格检查食物的质量和数量。
In addition, we add a bit string to each node in the tree to store the prefix of the items. By using the structure we can avoid repeatedly traversing the sub-tree while expanding the patterns.
除此之外，算法对频繁模式树中每个节点增加一个位串来存储该项目的前缀项目，以避免在模式扩展的时候频繁的遍历子树。
In a query expression, it is sometimes useful to store the result of a sub-expression in order to use it in subsequent clauses.
在查询运算式中，若要将子运算式的结果用于后续子句，则储存子运算式的结果有时会十分有用。
In a query expression, it is sometimes useful to store the result of a sub-expression in order to use it in subsequent clauses.
在查询运算式中，若要将子运算式的结果用于后续子句，则储存子运算式的结果有时会十分有用。
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