<blockquote>
  <p>鸦片战争后，天津开放为通商口岸。<br>
  <sub><a href="http://www.jukuu.com/show-%E5%8F%A3%E5%B2%B8-4.html" rel="nofollow noreferrer">Jukuu</a></sub></p>
</blockquote>

<p>I'm confused about 为 in this example sentence from Jukuu.  I think the sentence means:</p>

<blockquote>
  <p>After the Opium Wars, Tianjin opened "treaty ports".</p>
</blockquote>

<p>I understand these refer to foreign-run <a href="https://www.chinasage.info/foreign-enclaves.htm" rel="nofollow noreferrer">treaty ports</a>, as part of the <a href="https://military.wikia.org/wiki/Unequal_treaty" rel="nofollow noreferrer">unequal treaties</a>.  So my guess is that 为 is short for <a href="http://youdao.com/w/%E4%BD%9C%E4%B8%BA" rel="nofollow noreferrer">作为</a> = "to act as", but I'm unsure.</p>

<p><strong>Question</strong>: What does 为 do in 鸦片战争后，天津开放为通商口岸?</p>

CC BY-SA 4.0
2020-04-16T05:17:24.400Z
Yes,  为 = 作为 = "to be"  or "as" here
Tang Ho
<grammar><usage><meaning-in-context>
What does 为 do in 鸦片战争后，天津开放为通商口岸?
# What does 为 do in 鸦片战争后，天津开放为通商口岸?

(Asked by: username_0 on 2020-04-16)

> 鸦片战争后，天津开放为通商口岸。  
> [Jukuu](http://www.jukuu.com/show-%E5%8F%A3%E5%B2%B8-4.html)

I'm confused about 为 in this example sentence from Jukuu. I think the sentence means:

> After the Opium Wars, Tianjin opened "treaty ports".

I understand these refer to foreign-run [treaty ports](https://www.chinasage.info/foreign-enclaves.htm), as part of the [unequal treaties](https://military.wikia.org/wiki/Unequal_treaty). So my guess is that 为 is short for [作为](http://youdao.com/w/%E4%BD%9C%E4%B8%BA) = "to act as", but I'm unsure.

**Question**: What does 为 do in 鸦片战争后，天津开放为通商口岸?

**Tags:** grammar, usage, meaning-in-context
> **Comments:**
> **username_1**: Yes,  为 = 作为 = "to be"  or "as" here  

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