preserve reference materials

• 保存资料

preserve reference materials的用法和样例：

例句

1. The museum houses a collection of mementos, materials and documents.
   博物馆保存着很多回忆录以及文献资料。
2. In order to help you understand rules and regulations concerning working in Taiwan, please read the primer carefully and keep it with you for future reference.
   为协助您了解在台湾工作期间相关规定，以保护自身权益，请详细阅读本资料，并妥善保存，以便查询。