cross index

例句：

1. 1.The database has a cross index that allows users to quickly find information related to their search queries.
   该数据库有一个交叉索引，允许用户快速查找与他们的搜索查询相关的信息。
2. 2.In the field of medicine, cross indexes are used to compare medical records and identify potential drug interactions.
   在医学领域，交叉索引被用于比较医疗记录并识别潜在的药物相互作用。
3. 3. The researcher used a cross index to trace the origins of the virus in the outbreak.
   研究者使用交叉索引来追溯病毒在疫情中的来源。