Those captions come from things like the alt text that website owners upload with their images, for accessibility and for search engines.

这些标题来自于网站所有者上传图片时的 alt 文本，以方便访问和搜索引擎。

Like, I want people to write alt text so that I can access images on the internet.

就像， 我希望人们能够写上交替文字， 这样我就能够进入互联网上的图片了。

Where it succeeds has some really valuable but specific applications, like making the internet more accessible through quality captions and alt text.

它成功的地方有一些真正有价值但具体的应用，例如通过高质量的标题和替代文本使互联网更容易访问。