Hmmm, it sounds like you've been to The school of hard knocks.

嗯，听起来你是在困境中学习成长的。

In the school of hard knocks, you learn something as a result of difficult or unpleasant experiences.

经历艰苦的磨练时，你从困难或不愉快的经历中学到一些东西。

My wine knowledge has been gained through, some people say, the school of hard knocks, just being here working in it.

有些人说，我在葡萄酒方面的知识是通过在生活中不断历经磨难而获得的，但其实我只是一直在这里工作。

Although I did graduate from the school of hard knocks, our mascot was the knockers.

虽然我确实从硬敲门学校毕业， 但我们的吉祥物是门环。

Before Google, you couldn't figure out who you really were until you had gone through the school of hard knocks.

在使用 Google 之前，除非你经历了学校的艰辛考验，否则你无法弄清楚你到底是谁。