So we just do want to put a little question mark in the margin and then say, Well, fine. Granted this is all representation, where is the text where could the text be that would be natural?

所以我们在页边空白处打一个问号，说道：，好吧，这些都是表现，哪里有文本呢？，哪里有自然的文本呢？

youdao

Is a pattern that effectively means any text: alphabetical-index-mark, text: alphabetical-index-mark-start, or text: alphabetical-index-mark-end tag and all of its contents.

是一个模式，它有效地表示了任何text： alphabetical - index - mark、text： alphabetical - index - mark - start或text： alphabetical - index - mark - end tag和它们的所有内容。

youdao

As the name suggests, the former lets you mark up PDFs with text, arrows, shapes and highlighter tools, while the latter collates all the added notes into a single "summary" so users can get a visual overview of what's changed.

ENGADGET