Backtracking and semantic actions do not mix well.

回溯和语义动作混用不是太好。

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The first approach is to delay all semantic actions until the whole parse tree is constructed.

第一种做法是延迟所有语意动作，直到建立完整的剖析树。

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Thus in EAI, "integration" includes both semantic and non-semantic actions, and an "integration layer" can perform both.

因此，在EAI中“集成”包括语义和非语义操作，“集成层”可以执行这两类操作。

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