1·You'll recognize several parameter expansions, including length, substring, pattern matching, and pattern replacement in even this short piece of script.
即使在这样一小段脚本中，您也可以找到一些参数扩展，包括长度、子字符串、模式匹配和模式替换。
2·Well, one very common task is determining whether or not a given substring can be found anywhere within that value.
好的，一个普通的任务是判断给定的子字符串是否能在该值中任意处找到。
3·The length argument specifies the length of the desired substring.
长度参数指定了所需子字符串的长度。
4·The cut attribute indicates whether to delete the matched substring segment from the request URL before proceeding.
cut 属性指出是否在继续之前从请求 URL 中删除匹配的子字符串片段。
5·You saw in Part 1, Figure 13 that the cn attribute type has a field called substr, which defines the matching rules for substring match.
在第1部分的图13可以看到，cn属性类型有一个叫做SUBSTR的字段，它定义了子字符串匹配的匹配规则。
1·Complex queries are serviced by a combination of direct lookups, convergences against selected parent nodes, and targeted substring searches.
复杂查询是通过组合直接查找和对所选父节点的汇聚及目标子串搜索来完成的。
2·For convenience, the rope's length can be substituted for n, because the length is always greater than the number of substring and concatenation nodes in the rope.
为了方便，可以用rope的长度代替n，因为长度总是比rope中的子串和连接节点的个数大。
3·We can access any substring within this range.
在这个范围内，我们可以访问任意的子串。
4·How to remove substring from suffix tree?
如何从后缀树中删除子串？
5·Therefore I can't get the desired value at a certain column (substring).
因此，我不能得到在某一列(子串)所需的值。