力偶的英文：
couples
n. 对，双；配偶，夫妻；数个
v. 连接，结合；加上；性交；成婚
bayonet coupling
卡口式联结
It is not every couple that is a pair
成双并非皆配偶
Every couple is not a pair
同床异梦,貌合神离
The young couple decided to have a child.
小两口决定要个孩子。
The priest married the couple.
牧师为那对新人主持婚礼。