可能的话，最好加上下划线。

Possibly also make them underlined.

youdao

图像命名有相同规范，加上下划线和语言代码，有必要的话加上国家代码。

For naming images the same guidelines are followed. Just add an underscore plus with the language code plus an additional underscore plus the country code.

youdao

给超链接加上下划线将更有助于用户辨认超链接； 或者是当鼠标经过超链接时出现下划线，这样也能达到同样的效果。

The underlined version is a little bit clearer, but showing underline on hover would serve a similar purpose.

youdao