结成一对：指加入或使其他人加入以形成一对的群体。
成双成对：指在浪漫关系中结合在一起。
form a pair or pairs
同义词： pair / partner off / couple
... ambient temperatures 周围的温度 pair off 成双结对 athletic footwear 运动鞋 ...
... 35.settle for something 勉强接受某事物；退而求其次 36 Pair off 成双配对;结成对子 37. Pal up with 结交 ...
... 35.settle for something 勉强接受某事物；退而求其次 36 Pair off 成双配对;结成对子 37. Pal up with 结交 ...
Her parents persuaded her to pair off with rich neighbour.
她的父母劝她嫁给有钱的邻居。
All the tennis players had to pair off for a round of doubles matches.
所有的乒乓球运动员都得组对打一轮双打。
You shouldn't pair off because you need someone else's company, but because you enjoy it.
结成情侣不应该是因为有人需要陪伴，而是双方可以享受这样的关系。
So we would pair off students with Hispanic families in need,
我们会将他们与有需要帮助的拉美裔家庭结对，
SpeakingMax英语口语达人 : 帮助多文化的家庭
So in terms of nitrogen that starts off with a valence number of 5, again we have 2 lone pair electrons in the nitrogen, and again, we have 6 electrons that are shared.
对于氮来说,我们应该从五个价电子开始，同样，氮也有两个孤对电子，共用电子的个数也一样，是六个。
化学原理课程节选 : 麻省理工公开课
And then you realize that you've put on your most expensive pair of shoes this mooring, and if you stop to take them off, it might be too late and the child might drown.
你意识到你正穿着,你最贵的一双鞋，但是，如果你停下来脱鞋，就来不及救这个小孩，小孩可能会溺死。
人性课程节选 : 普林斯顿公开课
Police said members of Laura's family had dropped the pair off at Neath railway station so they could say goodbye.
The Rocket Racing League plans to pair off high-powered rocket planes in a high-speed, 3-D chase through the skies--think NASCAR meets Star Wars.
In a processing plant in Qingdao on China's northern coast, scores of workers pair off to remove the head and guts of Alaskan pollock.