Objects that have opposite charges are attracted to each other. Each object exerts a force on the other object. These forces pull the objects together带有异种电荷的物体会相互吸引,这种一个物体对另外一个物体产生的作用力,会将双方相互拉近。
英语 opposites sometimes do attract 翻译为中文意思是相反的人有时也会相互吸引。例如,In other cases, friends have very different versions of the same gene, suggesting opposites do attract. 在另一种情况下,在有的朋友当中,他们具有著同种但不同型的基因,这边意味著“异性相吸”的道理。