To many people, husband and wife alone do not seem a proper family—they need children to enrich the circle, to validate its family character, to gather the redemptive influence of offspring.

Chief among the issues of dispute: whether "unfriend" or "defriend" was the proper word for weeding someone from one's online circle.

The limitation of the single-effect LiBr absorption chilling circle driven by the low temperature solar energy heat source require adopting auxiliary means for proper operation.