1.No landmarks of racial progress—neither Reconstruction in the 19th century, nor the civil-rights movement of the 20th—made a difference.
make a difference 产生影响
A hero's life has made a difference in the lives of others.
英雄的生命会使其他人的生命不同
。2.Yet as a contribution to the contemporary debate over gun rights, "The Second" comes up short.
as a contribution to ... 作为对...的贡献
Every advertisement should be thought of as a contribution to the complex symbol which is the brand image.
每一个广告都应该想到为品牌形象做出贡献
。