当你能够漫步到花园的围墙外进入到广阔的互联网时，为什么还要待在那个封闭的区域里呢？

Why stay within a closed community when you can roam outside its walled garden, into the wilds of the internet proper?

youdao

最后再用不同的颜色填充这些封闭的区域。

You eventually fill the closed area with various colors.

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更妙的是，在一个SVG编辑器中，可以同时画两个区域(一个区域就是一个封闭路径)：睁眼和闭眼，并让后者透明。

Better still, in an SVG editor, you can draw both the areas (an area is a closed path), the open eye and the closed eye, keeping the latter transparent.

youdao

And they close off the square and just allow the public into certain bits of it

那时，他们会封闭广场，只允许公众去特定的区域，

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