block of argument

基本解释

Think of a closure as a code block that you can use as an argument, with special scoping rules.
闭包可被视作一个遵循特别作用域规则且可以用作参数的代码块。
The new method is created with the selected block of code in it refactored to properly use the argument and return values of the new method.
当重构了新方法内的所选代码块以便恰当使用新方法的参数和返回类型后，新方法就创建完成了。
Superficially the code changes are minor; rather than having a block of code following the "for" line, the code is passed as an argument to the "Parallel.For" function.
最直观的反应就是代码只需作细微的修改；在“for”语句内的代码块，可以作为参数传递到“Parallel.For”函数中。