n.[C]

1. 【史】（常大写）十字军；圣战
2. （为某种目的而发起的）运动[（+against/for）]
   He was deeply involved with the anti-drugs crusade.

   他深深地涉入了反毒品运动。

vi.

1. 【史】参加十字军（或圣战）
2. 参加运动[（+against/for）]
   We must crusade for world peace.

   我们必须为世界和平而奋斗。

n.

1. any of a series of medieval military expeditions made by Europeans to recover the Holy Land from the Muslims.
   ▸a war instigated for alleged religious ends.
2. a vigorous campaign with a political, social, or religious aim:
   a crusade against crime.

v.