elucidate

老师用简单的例子来阐明这个复杂的数学概念。

The teacher used simple examples to ___elucidate this complicated math concept.

建筑师举起一块简单的透明面板，阐明新翼楼如何与旧建筑的屋顶线匹配。

The architect held up a simple transparent panel to ___elucidate how the new wing matches the roofline of the old building.

辩护律师起身阐明她的委托人为何在案发精确时点距犯罪现场数英里之远。

The defense lawyer stood to ___elucidate why her client was miles from the crime scene at the exact time of the incident.