crusade

例句：

1. 1. The Crusades were a series of military campaigns waged by European Christians against Muslims in the Middle East during the 12th and 13th centuries.
   十字军东征是欧洲基督徒在12世纪和13世纪对中东穆斯林进行的一连串军事战役。
2. 2. This Crusade was a great success, as it helped to spread Christianity throughout Europe.
   这次十字军东征取得了巨大成功，因为它帮助基督教在欧洲传播开来。
3. 3. The Crusade was a time of great suffering and hardship for many people, but it also brought about importantcultural exchanges between different faiths.
   十字军东征是许多人经历的苦难时期，但同时也促进了不同信仰之间的文化交流。