1
- a series of military operations intended to achieve a particular objective, confined to a particular area, or involving a specified type of fighting战役, 战斗：
a desert campaign
沙漠战役
the air campaign
空中战役
mass noun the army set off on campaign.部队出发作战。
1.1
- an organized course of action to achieve a particular goal运动（为取得某目的而组织的活动）：
an election campaign
竞选运动
the campaign for a full inquiry into the regime
要求对政权进行全面调查的运动
with infinitive the campaign to reduce harmful vehicle emissions.减少车辆有害气体排放的运动。
no obj.
- work in an organized and active way towards a particular goal, typically a political or social one（尤指为达到政治或社会目的）参加运动：
people who campaigned against child labour
参加反童工运动的人们
with infinitive the services he had campaigned to protect.他四处奔走、力图保护的服务行业。
派生词
campaigner
noun词源
early 17th cent. (denoting a tract of open country)： from French campagne 'open country', via Italian from late Latin campania, from campus 'level ground' （see CAMP1 ）. The change in sense arose from an army's practice of 'taking the field' （i.e. moving from a fortress or town to open country） at the onset of summer.