So we haven't gotten to molecules yet, we're just talking about single atoms or single ions, but what's nice is just talking about this very straightforward principle of atomic radius.

我们还没有开始讲分子，我们仍然只是在讨论单个原子或离子，但它的好处在于可以讨论,这个关于原子半径的非常简单直接的原理。

麻省理工公开课 - 化学原理课程节选

He has heard justice praised his whole life from parents and from poets and from other authorities, but for the most part, he has only heard justice praised again for the benefits justice confers both in this life and the next.

他一辈子都在听正义的教训,从他的父母、诗人,或其它权威口中，他听到的大部份，都只是正义得到礼赞,因为赋予的好处,无论是今生或来世。

耶鲁公开课 - 政治哲学导论课程节选