To build the houses, he fills a wood frame with tightly packed bales of straw.

VOA: special.2009.10.05

A number of men, as one historian has written, I think quite effectively, "Mounted from log cabin to mansion" and I quote "On a stairway of cotton bales accumulating slaves as they went."

一些人就像一位历史学家写的那样,我觉得非常犀利,引述一段,"小木屋通往大厦的阶梯正是由,奴隶们用棉花包堆积成的"

耶鲁公开课 - 美国内战与重建课程节选

(talking) But after doing his own research, he learned that building with straw bales makes a lot of sense.

VOA: special.2009.10.05