You better believe it's sixty to seventy percent, and the further back you go in American history the closer it is to ninety and ninety-five percent.

你最好猜百分之六七十,要是你以后有机会学习美国历史的话,你会发现它在百分之九十到九十五之间

耶鲁公开课 - 古希腊历史简介课程节选