This in combination with the effects of aging and with genetic disposition in some instances, can cause a worldwide pandemic, and this is what we're currently experiencing.

某些场合中,衰退和生化影响,能引发全球性的大流行，这也是我们近来所见所闻。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Symmetric disposition of polar bonds still results in a nonpolar molecule.

空间对称的极性键分布,还是会导致整个分子为非极性分子。

麻省理工公开课 - 固态化学导论课程节选