pair off

基本解释

These rare love birds pair off wing to wing and sing joyously .
这些稀有的情鸟往往是并翅成双成对地边飞边引吭歌唱。
5An instructor demonstrates water combat techniques to prospective SEALs. The sailors then pair off, and practice the technique in a pool.
教官在给准海豹队员们演示水下的作战技巧。然而队员们分别开始捉对撕杀，在池中演练实战技术。
Guardian Soulmates encourages Guardian readers to pair off with other Guardian readers, presumably in order to spawn a new generation of Guardian readers.
Guardian Soulmates （卫报心灵伴侣）鼓励卫报读者相互配对，可能是它认为这样就可以确保新一代的卫报读者的诞生吧。

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，
帮助多文化的家庭 - SpeakingMax英语口语达人
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。
麻省理工公开课 - 化学原理课程节选
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。
普林斯顿公开课 - 人性课程节选

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.
FORBES: The New Space Race