The first section of HelloProgram is an English-language comment, which is simply program text that is ignored by the compiler.
Hello程序的第一部分是用英语写的注释，注释一般是一段简单的文字而且编译器会忽略这一段。
The program text and data segments now need to get written into the mem file, either using the write system call, or by mapping the file into the process address space.
程序的文本和数据段现在需要写入到mem文件中，这可以使用write系统调用，或者通过将该文件映射到该进程的地址空间中实现。
This is the big hurdle; to leap over it you have to be able to create the program text somewhere, compile it successfully, load it, run it, and find out where the output went.
这是横在你面前的一道巨大的障碍，要逾越它你必须能够在某处写下程序代码，然后成功编译，装载，运行，最终找到结果输出到了何处。
These 'my variables' are sometimes called' lexical 'because their scope depends only on the program text itself, and not on details of execution, such as what gets executed in what order.
my变量有时也叫做词法变量，因为它们的作用域仅仅依赖于程序文本自身，不依赖于执行细节，例如以什么顺序来执行什么。
How is program text associated with runtime objects?
程序中的文本是如何与运行时的对象相关联的？
In this book, we italicize comments to make them stand out from the normal program text.
本书中，注释排成斜体以区别于一般程序文本。
In general, each particular name is valid only within some possibly discontiguous portion of program text called its scope.
通常情况下，每个特定的名字仅在程序中某些被称为该名字的作用域的不连续区域中有效。
The first section of HelloProgram is an English-language comment which is simply program text that is ignored by the compiler.
Hello程序的第一部分是用英语写的注释，注释一般是一段简单的文字而且编译器会忽略这一段。
A preprocessing step performs macro substitution on program text, inclusion of other source files, and conditional compilation.
编译的预处理阶段对程序文本进行宏替换，包含进其他源文件，并进行条件编译。
This is the big hurdle; to leap over it you have to be able to create the program text somewhere compile it successfully load it run it and find out where the output went.
这是横在你面前的一道巨大的障碍，要逾越它你必须能够在某处写下程序代码，然后成功编译，装载，运行，最终找到结果输出到了何处。
Quadrant 1 (1gb) is reserved for Program Text (executable code).
象限1 (1gb)被预留给程序文本(可执行代码)。
Quadrant 1 (1gb) is reserved for Program Text (executable code).
象限1 (1gb)被预留给程序文本(可执行代码)。
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