Structural Change

（SC）结构转换

A term used in (especially classical) transformational grammar to refer to the operations involved in applying a transformational rule, i.e. the changes between the input and the output phrase-markers. In the transformation of active into passive sentences, for example, the structural change is complex, involving the reordering of the two noun phrases, and the insertion of new forms of the verb, and the agent marker by.

（主要用于经典）转换语法的术语，指应用一条转换规则涉及的一系列操作，即输入和输出短语标记之间的一系列变换。例如主动句转换成被动句，结构变换很复杂，涉及两个名词短语的重新排序，动词新形式的插入，施事加标记by“被”等。