https://tw.voicetube.com/everyday/20171013

英文：

How did eating popcorn become a custom at movie theaters? Nowadays, movie theaters depend on popcorn. They earn about 85 percent of their profits and forty percent of their total revenue from concessions. That was not always the case.

在電影院吃爆米花是怎麼變成是習俗的？現今，電影院主要收入來自爆米花，占了百分之八十五的利潤和總收入的百分之四十來自販賣部，但這並非總是如此。