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N-COUNT
				(长期坚定不移的)斗争,运动
				A crusade is a long and determined attempt to achieve something for a cause that you feel strongly about.
例句
						Footballers launched an unprecedented crusade against racism on the terraces...
						足球运动员们对阶梯看台上的种族歧视发起了一场空前的运动。
						He made it his crusade to teach children to love books.
						他把教孩子们热爱读书当做自己的使命。 
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VERB
				长期坚定不移地奋斗
				If you crusade for a particular cause, you make a long and determined effort to achieve something for it.
例句
						...a newspaper that has crusaded against the country's cocaine traffickers.
						坚决抨击该国可卡因毒贩的报纸
						...an adopted boy whose cause is taken up by a crusading lawyer.
						由一位执著坚定的律师受理其诉讼案件的被收养男孩 
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N-PROPER-PLURAL
				(发生于11世纪至13世纪的)十字军东征
				The Crusades were the wars that were fought by Christians in Palestine against the Muslims during the eleventh, twelfth, and thirteenth centuries.