'He's' may be a contraction of 'he is' or 'he has'.

he's可以是he is或he has的缩约形式。

《牛津词典》

Admittedly there has been a contraction of village commerce, but its vigour is still remarkable.

无可否认，农村的商业活动有所收缩，但其活力仍然惊人。

youdao

His big worry is of a contraction in credit supply.

他巨大的担忧是信贷供应的缩减。

youdao

Also you will often use a contraction. Instead of saying "you have" you'll say "you've."

你也会经常用到缩写的形式，一般我们会说“you've”而不是“you have”。

have to 课堂 - SpeakingMax英语口语达人

The cells that take an electrical signal, which is coming down your nerve and convert it into a muscle contraction work this way, so 'neuro' nerve, muscle junctions act based on ligand-gated ion channels.

依靠相同的工作原理,细胞将来自于神经的,电信号传递到细胞收缩肌中,所以神经和肌肉关节运动,都基于配体门控离子通道

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Of course, "I'd like" is just a contraction of "I would like".

当然，“I'd like”只是“I would like”的缩写形式。

I'd like 课堂 - SpeakingMax英语口语达人

With my first child, I had no idea what a contraction would feel like.

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All told, 15 out of 27 industrial sectors all witnessed a contraction in February.

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Because stocks are good things to buy during an expansion, but not during a contraction.

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