a pair
... 一对多关联性 one-to-many relationship 一对儿 a pair; a couple 一对一关联性 one-to-one relationship ...
a paira couple
... 一拨儿 group of people 一对儿 a paira couple 优先认股权 preemptive right (in share issue) ...
a couple
... 一对多关联性 one-to-many relationship 一对儿 a pair; a couple 一对一关联性 one-to-one relationship ...