因此用户就不必一直呆呆地盯着一个空白的浏览器窗口和沙漏图标,等着服务器做后面的事。
So the user is never staring at a blank browser window and an hourglass icon, waiting around for the server to do something.
其中一幅后面还有一幅图片;另一幅后面是一面空白墙。
One of them has a picture behind it; the other has a blank wall behind it.
它与空白uri的资源不同,后面也包括这样的资源。
This is different from a resource with an empty URI, which you also see here.
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