关于行距的问题

https://w3c.github.io/clreq/#id53

In Traditional Chinese composition, there are cases where pronunciation marks, referred to as 'ruby' in the Japanese Layout Requirements, are inserted between lines. In such cases the line gap is not changed but kept constant. If these elements are likely to occur in the text, the line gap established during type area design needs to be of an adequate size to accommodate them.

繁体中文排版中，字间的注音符号可能会超入行距空间，而翻译书籍也可能使用类似日文排版的ruby文字，此时行距仍需保持一致。当文中需要配置这些元素时，于设计版心的阶段就须考量到这些要素来决定行距。

有几个问题：

• pronunciation marks应该改为Bopomofo？
• 这里的「超入行距空间」指的是在直排时，注音符号在两行之间的意思？
• 「而翻译书籍也可能使用类似日文排版的ruby文字」具体指的是什么？英文版没有体现。

Review the linked CLReq section (id53) alongside the quoted Chinese and English text. Verify the meanings of “pronunciation marks,” “超入行距空间,” and the ruby-text sentence, then update the translation or clarify the wording so the Chinese accurately reflects the English and the questions are resolved.