本文描述每个节点的功能和限制，以及它们的典型用法。
This article describes the capabilities and limitations of each node and their typical usage patterns.
为了进一步简化它们的用法，DSL一般是高度声明式的，并描述需要发生什么，而不是如何完成(后者是语言实现者的责任)。
In order to further simplify their usage, DSLs are usually highly declarative and describe what needs to happen, rather then how it is done (the latter is responsibility of the language implementer).
这种极端精确的用法对大多数小说和诗绝对都是陌生的，它们出于礼仪需要使用复合词，同义词和各种描述。
This extreme precision is utterly foreign to most fiction and poetry writing, where using multiple words, synonyms, and varying descriptions is derigueur.
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