persistence

The persistence of the heavy rain caused the river levels to rise dangerously high by midnight.

(Chinese) 持续的大雨导致河水位到半夜时升到了危险的高度。

His persistence finally paid off when the manager agreed to give him a job interview.

(Chinese) 当经理同意给他面试机会时，他的坚持终于得到了回报。