A campaign is a planned set of activities that people carry out over a period of time in order to achieve something such as social or political change. (有计划的) 活动; 运动
noun [具体名词](有计划的)活动,运动;战役,战斗
During his election campaign he promised to put the economy back on its feet. 竞选活动期间,他许诺要致力于恢复经济。