This in some ways might seem a case of putting the cart before the horse or the cart before the course maybe because how can you say how can we say ? what political philosophy is in advance of doing it?

这好像有点,本末倒置,或说未卜先知,因为你们怎能谈，我们怎能,先谈政治哲学，之后再来实作呢？

耶鲁公开课 - 政治哲学导论课程节选

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