Quite a few powerful vector graphics formats were available before SVG was first imagined around 2001.

在SVG于2001年左右首次出现以前，已有相当多功能强大的矢量图形格式。

youdao

Quite a few powerful vector graphics formats were available before SVG was first imagined around 2001.

在SVG于2001年左右首次出现以前，已有相当多功能强大的矢量图形格式。

youdao