The idea was that these DINKs were, perhaps, selfish for not having children, at least that was one " connotation, " one meaning that people used this term, especially in the 70s and 80s.
这个想法是, 这些人可能因为没有孩子而自私,至少这是一个“内涵” ,意思是人们使用这个词, 尤其是在 70 年代和 80 年代。