Graduation represents moving from the 12 sheltered life of high school into the real world.

毕业意味着从备受保护的高中学校生活中走出来，走进现实的世界。

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The good news is that we are going to be shifting gears very soon and moving into subject matter unlike anything you have seen in high school, and so you will get a fresh start.

好消息是我们将,马上运行设备并且转向主要课题,不想你在高中所学的任何知识，所以你将有个新的开始。

麻省理工公开课 - 固态化学导论课程节选