They marched out singly or in pairs.
他们一个一个地或成双成对地走出去。
He programmed his computer to compare the 1,431 possible combinations of pairs in this population.
他给他的计算机编了程来比较这些人中1431种可能的成对组合。
他们两个共卖30双鞋。
She knitted her son 5 pairs of socks.
她给儿子织了5双袜子。
它成对出售。
Astronomers suspect that pairs of planets also engage in this slingshot activity, leaving them in disturbed, elliptical orbits.
天文学家怀疑成对的行星也参与了这种弹弓活动，使它们处于不规则的椭圆轨道上。
But there was a problem: transits of Venus, unlike those of Mercury, are rare, occurring in pairs roughly eight years apart every hundred or so years.
但有一个问题：和水星凌日不同的是，金星凌日是罕见的，大约每隔一百年会成对出现八年的时间。
The elderly gravitate there, shuffling in cheerful pairs along Marine Parade or jogging in slow motion past the Sea Gull Café, intent on some distant goal.
被吸引到那里的老人们，或是成对欢愉地沿着马林百列缓步慢行，或是不紧不慢地经过海鸥咖啡店，要去往远处的某个地方。
Students worked in pairs on the project.
学生两人一组做这个项目。
A brief rummage will provide several pairs of gloves.
稍许翻一下就会找到几副手套。
What I heard most often there was questions like "Shall we do the task in pairs?" and "Four students each group."
在那里我最经常听到是诸如“我们将以小组形式做这个任务吗”此类的问题，和“每组四个学生”。
我有两套睡衣裤。
学生展示对话。
两人一组做练习。
筷子都是成双的。
这些鸟成双成对地飞。
Sometimes the pupils work in pairs.
有时学生两人一组学习。
How many pairs of socks does the woman take?
这位女士带了多少双袜子?
The teacher lets students read the text in pairs.
老师让学生两人一组读课文。
Looking at rising and setting star pairs is a good technique.
观察上升和下降的星对是一个很好的技巧。
You shall work in pairs or groups to show the preview results.
你们要分组展示预习成果。
The two pairs of gloves from my grandma are full of love for the family.
奶奶送给我的两副手套，充满了对家人的爱。
It was a big exhibition, a big art show that they had in Pairs every year.
那是一个很大的展览，是他们每年都会在巴黎举办的一个很大的艺术展。
What insects have one pair of wings? What insects have two pairs of wings?
什么昆虫有一对翅膀，什么昆虫有二对翅膀？
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