Model transformation is a vital technique of MDA. In a complex model-driven development process, it is most likely capapble of employing multiple transformation languages, along with their corresponding tools, to develop a set of model transformations. This increases the learning costs, and also leads to some compatibility problems. The paper proposes a technique of semantics-configurable model transformation, which enables developers to solve different problems using one transformation language, by redefining the semantics of the language. First, a set of common primitive actions are proposed. Then, TSS, an OCL-based scripting language, is employed to specify the logic of a primitive action. Finally, the paper discusses the completeness, expressiveness, and complexity of this approach, and evaluates the approach with some case studies.