Strictly speaking, the AST (abstract syntax tree) is also an IR (intermediate representation) - since it is not quite the source, and not quite the target language.
严格说来，AST(抽象语法树)也是一种IR——因为它既不是源代码，也不是目标语言。
The computer aided tax system described in this thesis is a semantic grammar system, with the semantic dependency tree as the intermediate language.
本文描述的计算机选案子系统采用语义文法结构，中间语言采用语义依存树的形式。
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