Pink and gray brain hats dotted the crowds at the March on Science in Washington, becoming one of the symbols of the march's message.
원문출처 : http://www.cnn.com/2017/04/22/us/march-for-science-brain-hats/index.html
원문출처 : http://www.cnn.com/2017/04/22/us/march-for-science-brain-hats/index.html