crusade

改革运动、圣战、讨伐

She led a long crusade against corruption in local government.

她长期投入打击地方政府贪腐的改革运动。

十字军东征常大写

The Crusades lasted for almost two hundred years.

十字军东征持续了将近两百年。

从事改革运动、大力鼓吹、奔走呼号

He has crusaded for cleaner air in the city for decades.

数十年来他一直为城市的空气品质奔走呼号。