If the request block is requesting HTML, it executes the first closure; if it's requesting XML, it executes the second.

如果发出请求的代码块是在请求HTML，这段代码会执行第一个闭包；如果发出请求的代码块在请求XML，这段代码会执行第二个闭包。

youdao

This policy rounds off the size of the allocation request to the next highest available block.

这种策略把分配请求的大小向上取整到下一个可用的块大小。

youdao

You can also block or unblock a request from an application based on a security alert.

你还可以基于一个安全警报来阻止或者不阻止来自一个程序的请求。

youdao

First was Apple, denied an injunction request to block all sales of Samsung devices.

ENGADGET: Editor's Letter: Looking back

They took action after the new Egyptian authorities made an international request to block the assets of 130 people associated with his rule.

BBC: Spain seizes former Egypt leader Hosni Mubarak's assets

Lawyers for MLB are expected to attempt to block that request.

WSJ: Dodgers Owner Frank McCourt Files for Team's Bankruptcy