xià​huà​xiàn

underscore

下划线 下劃線 xià​huà​xiàn
underscore
the underscore character "_"; a line drawn under text to emphasize it or indicate a hyperlink
underline
to draw a line under a word or sentence for emphasis or as a formatting convention

Frequency

Movie subtitles
0.270 per million appears in 0% of films
Written text
0.115 per million

Sources