n.[C]

1. 战役
   The campaign to seize the city was a failure.

   攻占这个城市的战役失败了。

2. 运动，活动[（+for/against）][+to-v]
   The city hall is planning to start a campaign against smoking.

   市政府计划发起禁烟运动。

3. 竞选运动
   The presidential campaign was in full swing.

   总统竞选运动正在全力进行中。

vi.

1. 从事运动[（+for/against）]
   The union leaders are campaigning for better working conditions.

   工会领导人为争取改善工作条件而积极活动。

2. 参加竞选[（+for）]
   He hasn't decided whether to campaign for the senate.

   他尚未决定是否参加参议员的竞选。

3. 作战，出征

n.

1. a series of military operations intended to achieve an objective in a particular area.
2. an organized course of action to achieve a goal.

v.