All-In-One Code Framework Coding Standards.docx
Original English Edition says:
Nested if is often the worst choice. You quickly run out of
horizontal space. It is harder to read, harder to maintain.
嵌套 if 法经常是最坏的选择。您会很快耗尽水平空间。代码更难阅读和维护。
The space means whitespace said in section 2.9, so the translation is wrong.
Candicate translation is: 您会很快没有了水平方向用于留空白的地方（用于代码缩进）.
The translation is not beautiful, but is correct.