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

在中性写作中，你可使用缩合和一些缩写。

The process requires pinpoint timing of contractions and digging.

而一过程需要收缩及挖掘动作的精确配合。

Matahara, (a contraction of " maternity" and " harassment" ) , is illegal but rife.

“孕妇骚扰”(孕妇和骚扰的缩写)虽法的行为，但随处可见。

Gradually, their contractions become weaker, ultimately impeding the pumping of blood to your heart.

逐渐地，肌肉的收缩变弱，最终阻碍血液泵入心脏。

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

们通常认为最近全球性严重经济衰退会降低通胀率。

I have used a contraction so that is informal.

我用了一个缩写，所时布非正式的。

The contraction “there are” gets even less clear, it’s really just one syllable “thur”.

“there are” 的略音变得简略，它实际上只剩下一个音节“thur”。

My first grammar tip is to avoid contractions where necessary.

我的第一个语法建议必要时避免使用缩略形式。

The actually contraction is, " isn't" or " aren't" .

事实上的缩写 isn't 或 aren't。

What we usually say instead are contractions.

我们经常说的缩略词。

Contractions are when we put two words together by making one word shorter.

缩读两个字构成一个更短的字。

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

句话里，有两个地方可缩读。 您知道哪两个地方吗？

They directly and efficiently convert electrical energy into muscle contractions.

它们可直接高效地把电能转化成肌肉收缩。

These living muscles efficiently convert chemical energy that comes from nutrients into muscle contractions.

些活肌把来自营养素的化学能量高效地转化为肌肉收缩。

I've definitely noticed this before in the I AM contraction.

我之前就注意到 I AM 缩写的发音方式。

As a result of this contraction, the thin lunar crust bursts and large cracks appear.

由于种收缩，薄薄的月球地壳崩裂，出现了巨大的裂缝。

Wanna, gonna, coulda is... that is contractions we use in natural spoken English.

Wanna， gonna，coulda 我们在自口语中使用的缩写。

You must be using these contractions, right?

你一定在使用些缩写。

We have " gonna" which is a contraction of " going to" .

“gonna”就“going to”的缩写。

In spoken English, we nearly always make the contraction unless you are stressing or emphasizing.

在英语口语中，我们几乎总缩写，除非你在强调。