对该事件的官方调查没有得出新的信息。

The official ___inquiry into the incident yielded no new information.

经询问，工作人员确认包裹已送达。

Upon ___inquiry, the staff confirmed that the package had arrived.

她的研究路线侧重于人工智能的伦理影响。

Her line of ___inquiry focused on the ethical implications of artificial intelligence.