We sought for reference materials.

我们收集的参考材质。

Do you have any reference materials about this project?

你有关于这个工程项目有参考资料吗？

Paints from imagination, reference materials and models.

绘画的素材来自想象、参照物和模特。

Paintss from imagination, reference materials and models.

绘画的素材来自想象、参照物和模特。

You may use any reference materials you need to answer the quiz.

回答这些问题时，你可以参考任何资料。