3.1.5.1 的中英文不匹配

[xfq]

https://w3c.github.io/clreq/#h-unbreakable_marks_punctuation

The following punctuation marks should be considered as one unit and take 2 em. They should not be separated into two lines. In cases where multiples of such punctuation marks appear together, it is allowed to separate them into two lines as described in 3.2.4 Handling Western Text in Chinese Text Using Proportional Western Fonts 西文使用比例字体时的混排处理 西文使用比例字體時的混排處理. If they were forced to remain on one line, it might cause too much space between the characters in the previous line and decrease the aesthetics of the entire composition.

以下标点符号占用两个汉字的空间，在行间应为一体，视作一个字符存在，不能为了适配分行而拆成两行。

这里的中英文不匹配，需要修改。