ambit

这项研究超出了我们目前的知识范围。

This research goes beyond the current ___ambit of our knowledge.

环境监管完全属于这个政府机构的职权范围。

Environmental regulations fall squarely within the ___ambit of this government agency.

侦探将调查范围扩大到嫌疑人的财务记录。

The detective expanded the ___ambit of the investigation to include the suspect's financial records.