declarative region meaning in English

宣告区域

A name can be hidden by an explicit declaration of that same name in a nested declarative region or derived class ( 10 . 2 )
名字被嵌套的声明区域或派生类（ 10 . 2 ）中相同名字的显式声明所隐藏。
A name declared in a block ( 6 . 3 ) is local to that block . its potential scope begins at its point of declaration ( 3 . 3 . 1 ) and ends at the end of its declarative region
块（ 6 . 3 ）中声明的名字是局部于这个块的。它的潜在作用域从其声明点（ 3 . 3 . 1 ）开始，到其声明区域的结尾结束。
In that case , the potential scope of the declaration in the inner ( contained ) declarative region is excluded from the scope of the declaration in the outer ( containing ) declarative region
此时，内部（被包含）的声明区域中声明的潜在作用域被外部（包含的）声明区域中声明的作用域排除。
Every name is introduced in some portion of program text called a declarative region , which is the largest part of the program in which that name is valid , that is , in which that name may be used as an unqualified name to refer to the same entity
每个名字都被引入到程序文本中某些被称为声明区域的部分中，声明区域是程序中该名字有效的最广泛区域，也就是说，这个名字在其中可以作为非限定名应用并指代同一个实体。