Many scripts (e. g., French) require superscripts or subscripts for proper rendering. The sub and sup elements should be used to markup text in these cases.

很多书写用字母(比如：法语)需要上标或下标才能正确展示。在这些情况下，SUB和SUP元素应该用来标记文本。

youdao

Many scripts (e. g., French) require superscripts or subscripts for proper rendering. The sub and sup elements should be used to markup text in these cases.

很多书写用字母(比如：法语)需要上标或下标才能正确展示。在这些情况下，SUB和SUP元素应该用来标记文本。

youdao