Also, the definition of reference remains simple: it doesn't have to redeclare any of the content that it shares with topic.

此外，reference的定义仍然很简单，不需要声明与topic相同的任何内容。

youdao

And that's fine, because inside of curly braces can you redeclare variables with the same name if you intend to quote unquote shadow the previous variable.

那是可以的，因为,在花括号里面，你可以重新定义一个,相同名字的变量,如果你想引用之前的变量。

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