success story
noun [ C ] uk/səkˈses ˌstɔː.ri/ us/səkˈses ˌstɔːr.i/
成功的事例（或人）；飞黄腾达的人
something or someone that achieves great success, often by making a lot of money
Her company is a rare success story in these times of recession. 她的公司是经济衰退时期少有的成功范例。