Doing so also means you can't use the same filename twice, because it may be cached in at least two places and users will receive the cached version instead of the new one for quite a while.

这样做也意味着你不能两次使用相同的文件名，因为它可能至少在两个地方（CDN/浏览器）被缓存，用户将在相当长一段时间内获得旧的缓存版本而不是新的版本。

youdao