RT: "African-Americans played a profound role in shaping the U.S. business landscape. " Some technological innovations are the traffic light, automatic elevator doors & caller ID." via @Forbes Want to join these innovators? Check us out: https://bit.ly/STLLearnMore #Entrepreneur #BHM https://t.co/6qaTlaOkmw
RT：“非裔美国人在塑造美国商业格局方面发挥了深远的作用。”一些技术创新包括红绿灯、自动电梯门和；来电显示：“via@Forbes想加入这些创新者吗？请查看我们：https://bit.ly/STLLearnMore#企业家#BHMhttps://t.co/6qaTlaOkmw