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。

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。

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。

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。

So they pair up with another female.

所以它们与另一只雌性配对。

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。

Then the groups pair up to crosslink with new partners.

然后这些小组配对以与新合作伙伴交联。

I just told everybody to pair up and she took off.

- 我只是告诉大家配对， 她就起飞了。

We now have four couples paired up.

现在我们已经产生了四对。

All of my friends had paired up and I was left hanging.

我所有的朋友都配对了，而我却悬而未决。