In Lolita the vision of America is minute; it's detailed; it's concrete.

洛丽塔》中美国的景象是微小细腻，然后有混凝土的感觉。

耶鲁公开课 - 1945年后的美国小说课程节选

And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。

麻省理工公开课 - 固态化学导论课程节选