You must be using these contractions, right?

你定在使用写。

I have used a contraction so that is informal.

我用了个写，所以时布非正式的。

Okay, Dad, how far apart are the contractions?

好吧，他爸，宫频率多少了?

We heard another contraction there. They would — they'd.

我们里又听到个写词。they would—— they'd。

You've had false contractions, known as Braxton Hicks.

刚才你经历的被称作假宫。

We can make two contractions here. Can you see where?

句话里，有两个地方可以读。 您知道是哪两个地方吗？

In neutral writing, you can use contractions and some abbreviations.

在中性写作中，你可以使用合和写。

The short form " it's" is what we call a contraction.

" it’s" 样的简略形式就是我们所说的写形式。

You just used one. What's is a contraction of what is.

你刚刚就说了个。what's是what is的略形式。

Deep recessions like the recent global contraction would normally be expected to send inflation tumbling.

人们通常认为最近全球性严重经济衰退会降低通胀率。

The muscles of your chest cage, abdomen, and diaphragm undergo a forceful contraction.

时你胸腔，腹腔和隔膜的肌肉会强力收。

I had — I'd. I would — I'd. It's the same contraction.

我曾经——I'd。我会——I'd。是同样的写。

With he, she and it, have becomes has, and we also use a contraction.

和 he，she 和 it，have 变成 has，我们也使用写。

But you will occasionally hear the contraction a little differently.

但是你可能会听到写有点点不太样。

It works by blocking the release of a neurotransmitter called acetylcholine, which controls muscle contractions.

乙酰胆碱的释放。乙酰胆碱正是神经控制肌肉收的那道指令。

The process requires pinpoint timing of contractions and digging.

而过程需要收及挖掘动作的精确配合。

This is what leads to a premature ventricular contraction, or PVC.

就导致了次室性期前收，或者说PVC。

The second one is shoulda. Which is a contraction of " should have" .

第二个是 shoulda。它是 should have 的写。

Contractions are very, very common in spoken English.

略词在英语口语中是非常、非常普遍的。

This contraction can be triggered by eating.

种收可以通过进食来触发。