Because A and T bases pair up, and C and G bases pair up.

因为 A 和 T 碱基成对，而 C 和 G 碱基成对。

Coach Clapp ordered us to pair up into teams.

克拉普教练让我们自己组队。

Under his teacher's stern eye, he pairs up with his classmates and goes through the routines he's been practicing.

在老师严厉的目光下，他与同学们结对演练他一直在练习的整套招式。

Participants were paired up at random and their reactions recorded.

参与者被随机配对，并记录他们的反应。

These atoms look for other electrons to pair up with.

这些原子会寻找别的电子进行配对。

97% of mammals do not pair up to rear their young.

97% 的哺乳动物不会在年轻时配对。

But lots of other kinds of words can pair up like this.

但是很多其他类型的单词也可以这样配对。

Any minute now, we could get paired up with a new foster kid.

现在每一分钟我们都可能和新领养的孩子配对。

I paired up with a couple of future Hall of Famers and Paul Pierce and Kevin Garnett.

我和几个未来的名人堂成员--保罗·皮尔斯以及凯文·加内特，一起并肩作战。

Electrons have a property called spin, and two electrons with opposite spins pair up and cancel out.

电子具有一种性质，叫做自旋，而且两个反向自旋的电子配对并抵消了这一性质。

After about 300,000 years, space cooled down and those particles began pairing up into atoms and molecules.

大约 30 万年以后，宇宙慢慢冷却下来，不同粒子之间开始相互配对，合并成原子和分子。

Most of the lockers have an even number of factors, which makes sense because factors naturally pair up.

大多数柜子有偶数个因子因数，因为因数自然是成对出现的。

He was eventually paired up with producer Don Law, but it wasn't a conventional studio they recorded in.

他最终与制片人唐洛搭档，但他们录制的地方不是传统的工作室。

End 1 then pairs up with a complementary strand of the intact homologous DNA region, creating a loop in the homologous DNA.

然后End 1与完整的同源DNA区域上的互补链配对，在同源DNA上形成一个环。

There are four bases: A, T, C, and G, and the bases pair up as AT and CG.

A、T、C 和 G，碱基配对为 AT 和 CG。

In the spring, they start pairing up, and they vocalize with each other to sort of strengthen the pair bond.

在春天它们开始配对并互相发声以加强配对关系。

Traditionally, Kazakh hunters pair up with their eagles for seven years before setting them free, but Berik now has his doubts.

一般来讲，哈萨克族猎手和他们的鹰会朝夕相处长达七年，然后让它们回归自然，但此刻贝瑞克产生了怀疑。

The nucleotides on one strand pair up using hydrogen bonds with nucleotides on the opposing strand to create the double-stranded DNA.

一条链上的核苷酸通过氢键与相对链上的核苷酸配对，形成双链DNA。

Yeah, 100%. I know. I'm so, when I heard that I was getting paired up with you, I was so excited.

是的，绝对是这样。我知道。当我听说我要和你搭档对话时，我太兴奋了。

So they pair up with another female.

所以它们与另一只雌性配对。