diligence

The detective's diligence in reviewing the security footage eventually led to the suspect's arrest.

(Chinese) 侦探在审查监控录像时的勤勉最终促成了嫌疑人的被捕。

Academic success requires not just natural intelligence, but also a great deal of diligence.

(Chinese) 学业成功不仅需要天赋，还需要大量的勤勉努力。