You people have no sense of humor, no sense of joy, no sense of joie de vivre. You are so young.

你们这些人啊，没有幽默感，没有娱乐精神，也没有生活的乐趣，你们太年轻了。

麻省理工公开课 - 固态化学导论课程节选

Let's say you have a friend who doesn't believe that you're in their life very much.

假设你有朋友觉得你现在跟他们的生活基本没有交集了。

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Meanwhile, his youth was going away and now this imaginary student is now thirty-three years old never had time to marry or start a normal life.

与此同时，他的青春年华也已经逝去了,现在这位设想出来的同学已经33岁了,还没有结婚也没有开始正常人的生活。

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