work up to
phrasal verbwork up to something
- to develop or move gradually towards something, usually something more exciting or extreme
逐步发展到，逐渐达到（更高或更深的程度） - The music worked up to a rousing finale.
乐曲渐变到激动人心的末乐章。 - I began by jogging in the park and worked up to running five miles a day.
我开始在公园里慢跑，后来逐渐增加到一天跑五英里。
- The music worked up to a rousing finale.