re.lent.less.ly rI5lent7lE7sli adv 不断地，持续地，锲而不舍地 She has campaigned relentlessly to secure her husband's release from prison. 她锲而不舍地奔走努力争取她丈夫释放出狱。 Demand for places in the college has been rising relentlessly over the past few years. 过去几年里上大学的要求不断上升。