He kept the glasses in case his vision should ever become dim.

以防视力下降、两眼昏花,他还带了眼镜，“

耶鲁公开课 - 1945年后的美国小说课程节选

and we'll talk about where food comes from because people have become very interested and they're becoming ever more interested in the story of their food.

我们将谈到食物的来源,因为人们对食品的追溯,越来越感兴趣

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选