They marched out singly or in pairs.
他们一个一个地或成双成对地走出去。
这些鸟成双成对地飞。
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。
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。
Students worked in pairs on the project.
学生两人一组做这个项目。
Even numbers, except four, are better than odd-as good things are believed to come in pairs.
偶数，除了4，都比奇数好，因为人们相信好事成双。
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”。
学生展示对话。
两人一组做练习。
筷子都是成双的。
Sometimes the pupils work in pairs.
有时学生两人一组学习。
它成对出售。
The teacher lets students read the text in pairs.
老师让学生两人一组读课文。
You shall work in pairs or groups to show the preview results.
你们要分组展示预习成果。
Factors can always be harvested in pairs.
因子可以是成对的。
The sender and receiver channels act in pairs.
发送方通道和接收方通道成对地起作用。
They’re always sold in pairs, didn’t you know?
就是那么卖的，你不知道吗？
Use the following dialogue to help you. Work in pairs.
用下面的对话帮助你，两人一组展开对话。
Following a practice from Holland, we suggest working in pairs.
从荷兰的实践经验来看，我们建议干活要成对的进行。
Asymmetric algorithms are used to generate keys that exist in pairs.
非对称算法用于生成成对的密钥。
You can optimize the algorithm by noticing that factors come in pairs.
因子是成对出现的，可以通过这点来优化算法。
They were individual seats, but in pairs, divided into three rows.
座位都是单个的，但都成对放着，被分成三排。
So he went out and caught 300 foxes and tied them tail to tail in pairs.
所以他来到外面并抓了300狐狸，把他们的尾巴成对的连在一起。
The capsules are stacked in pairs, with chrome ladders at their entrances.
微型舱是两个叠在一起的，在进口处装有镀铬的扶梯。
The chopsticks showed them how they could pick up food by working in pairs.
筷子向他们显示了他们怎样通过结对工作夹起食物。
Then along came XP proponents who said programmers should write code in pairs.
后来出现了xp倡导者，他们说程序员应该结对编写代码。
First, its genes are arranged in pairs of three, not single pairs, as with humans.
首先，小麦的基因三个一对，不是跟人类一样的两个一对。
These two favorites in Chinese cuisine show that good things really do come in pairs.
这两款中国的新年时菜寓意“所有的好事双双大驾光临”。
All the values stored in the columns are compared in pairs (lines 45, 48, 85, and 88).
对存储在列中的所有值进行两两比较(第45、48、85和88行)。
Speaking; Work in pairs. What is the public image of your partner's company and its products?
结合练习，你搭档的公司有什么公众形象？
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