Somebody might be sort of a disorganized librarian and might want to put this one upside down but over here.

有些人可能是一个没有条理的图书管理员,想要把这个颠倒过来,放在这边。

麻省理工公开课 - 固态化学导论课程节选

Remember that this molecule, let's look at the blue one wouldn't be the same if I turned it upside down.

让我们记住,如果我把蓝色的,单链倒过来,那么这条链和原来不一样了

耶鲁公开课 - 生物医学工程探索课程节选

So, imagine taking two IgG's, turning one upside-down and then they're hooked together.

想象一下,有两个IgG分子,将其中一个倒置,那么两个分子将会相互钩住

耶鲁公开课 - 生物医学工程探索课程节选