You will have to shed the tears and you've got to bang your head on the wall and go through your own private struggle.

你们也要激动到流泪,懊悔到用脑袋撞墙,兴奋挣扎都要亲身经历

耶鲁公开课 - 基础物理课程节选

You have to imagine they're moving along quicker than you would by walking, so that they will go bang and we can see what happens.

你得想象他们往前跑动的速度,肯定要比你步行快,所以就像这样"砰"地撞在一起,然后大开杀戒

耶鲁公开课 - 古希腊历史简介课程节选