坚持不懈
Her persistence paid off when she was offered the job of manager..她得到了经理的职位，不懈坚持终于有了回报。
‘Why can’t I come?’ repeated Will with dogged persistence ..“我为什么不能去？”威尔不死心地又问了一遍。
persistence of vision视觉暂留；视觉残留；持续视觉
