One of the things that's very true about Moscow, right into the twentieth century, is that you had all sorts of peasants living on the edge of Moscow living in these wooden houses.

有一件关于莫斯科的史实,直到二十世纪,在莫斯科的郊外,还有许多农民住在这样的小木屋里

耶鲁公开课 - 欧洲文明课程节选

Well, he would love to be fighting at the edge of the Grand Canyon, so that he doesn't have to worry about his right flank, but he's out there in the middle of a field.

如此一来他肯定会喜欢在大峡谷边上战斗,因为那样就不必担心右侧受到攻击,但当他在战场的中央

耶鲁公开课 - 古希腊历史简介课程节选

Our t = 0, you have him right on top of this edge.

设 t = 0 时他正好在楼顶的边缘

耶鲁公开课 - 基础物理课程节选