It would be far nearer the truth to say that some are born with saddles on their backs and others booted and spurred to ride them."

这样说也许更贴切,有些人生来就烙有奴隶的印记,而有些人生来就是统治他们的"

耶鲁公开课 - 美国内战与重建课程节选

Suddenly they do the Doppler effect where they turn their backs to you, in a way, and they're marching away from you and you hear very little sound.

突然,他们也产生了多普勒效应,当他们转身背对你时,当他们背离你前进时,你会听到一种很微弱的声音

耶鲁公开课 - 聆听音乐课程节选

You don't see advertisements for participation in commercial real estate like this because the government would be on their backs if they did it.

你不会看到,投资商业地产DPP的广告,因为如果这样,政府会陷入困境

耶鲁公开课 - 金融市场课程节选