Next time you fill up at a gas station, you might give a thought or two to how the gas has gotten here. Perhaps you will gain a deeper understanding of the workings of the modern economy and treasure each drop of oil you have!
下次當你到加油站加油，不妨稍微想一想這些油的來歷，也許你會對現代經濟的運行有更深的體會，也會更加珍惜手中的每一滴油吧！