The third column, highlighted in bold, is constructed by two nested functions inside a TREAT specification.
第三列（粗体显示）是由TREAT 中的两个嵌套函数构造的。
The Parameters list also displays parameter information for nested functions.
“参数”列表还显示嵌套函数的参数信息。
When no nested functions are involved, the scope chain is the only reference to the call object.
如果不涉及到内嵌函数，这个作用域链是唯一引用到调用对象的。
Nested functions are perfectly understandable when they are invoked in the same lexical scope in which they are defined.
如果内嵌函数调用时的作用域就是它们定义时所处的词法作用域，那就很好理解了。
Nested functions are perfectly understandable when they are invoked in the same lexical scope in which they are defined.
如果内嵌函数调用时的作用域就是它们定义时所处的词法作用域，那就很好理解了。
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