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团结一心 | 国家地理每日图片

来源: Nat Geo Photo of the Day

原文
A crowd of people holding hands and singing during the "March on Washington." The march, which took place on August 28, 1963, saw more than a quarter million particpants and is where Dr. Martin Luther King, Jr. gave his historic "I Have a Dream" speech.

Together in Unity

A crowd of people holding hands and singing during the "March on Washington." The march, which took place on August 28, 1963, saw more than a quarter million particpants and is where Dr. Martin Luther King, Jr. gave his historic "I Have a Dream" speech.

James P. Blair, Nat Geo Image Collection