Nonetheless, programmers still speak in terms of source files, even if they actually mean translation units, so this book uses the phrase source file because it is familiar to most readers.

• 但是，即使实际想说翻译单元，程序员们仍以源文件这个术语称呼，所以这本书用源文件这个术语，因为大多数读者已习惯它。