Special railroad cars kept the meat cold, so it would remain fresh until sold.

VOA: special.2010.03.18

And Charles Darwin actually, who was an astute observer of human behavior, tells a nice story to illustrate this: how "a native touched with his finger some cold preserved meat and plainly showed disgust at its softness whilst I felt utter disgust at my food being touched by a naked savage though his hands did not appear dirty."

达尔文，对人类行为观察入微，他有一个故事很好地解释了反感：,“一个土著用手指碰冷腌肉,那种软软的质地让他感到很反感,而让我感无无比反感的是我的食物,被一个没穿衣取的土著碰了，虽然他的手不脏“

耶鲁公开课 - 心理学导论课程节选

And Charles Darwin actually, who was an astute observer of human behavior, tells a nice story to illustrate this: how "a native touched with his finger some cold preserved meat and plainly showed disgust at its softness whilst I felt utter disgust at my food being touched by a naked savage though his hands did not appear dirty."

达尔文，对人类行为观察入微，他有一个故事很好地解释了反感：,“一个土著用手指碰冷腌肉,那种软软的质地让他感到很反感,而让我感无无比反感的是我的食物,被一个没穿衣取的土著碰了，虽然他的手不脏“

耶鲁公开课 - 心理学导论课程节选