1.N-VAR A contrast is a great difference between two or more things which is clear when you compare them.(巨大的) 差别
2.PHRASE You say by contrast or in contrast,or in contrast to something,to show that you are mentioning a very different situation from the one you have just mentioned.相比之下
3.PHRASE If one thing is in contrast to another,it is very different from it.与…截然不同
4.V-T If you contrast one thing with another,you point out or consider the differences between those things.对比 (事物以指出不同点)
5.V-RECIP If one thing contrasts with another,it is very different from it.与…形成对比
6.N-UNCOUNT Contrast is the degree of difference between the darker and lighter parts of a photograph,television picture,or painting.(图片、电视画面、绘画中深浅的) 对比度
（以上是contrast 的5种解释,通过比例可以初步断定,contrast作为名词解释比较多.）