It emerged from a unique history in which chance and accident often played a vital part.

它出现在这段独特的历史中,其中机遇和偶然性扮演了重要角色

耶鲁公开课 - 古希腊历史简介课程节选

Why is that since there seems to be so many ? opportunities now?

现在应该有很多机遇,为什么还会出现这种情况呢？

普林斯顿公开课 - 国际座谈会课程节选