Even with these extensions, the main problem with BPEL remains.

即使有了这些扩展，BPEL的主要问题依旧存在。

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The simplest caching rules are based on standard file extensions. By default, files with these extensions are cached automatically

最简单的缓存规则基于标准的文件扩展名。

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McLuhan believed that mankind has always been fascinated and obsessed with these extensions, but too frequently we choose to ignore or minimize the amputations.

麦克·卢汉认为，人类通常会执迷于这些技术上的延伸，但是经常会忽略或小觑与之伴随的切断效应。

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These slogans are about all we are left with in terms of the creative extensions of each campaign.

FORBES: Where's The Beef? Episode 5 of "The Pitch" Continues Pattern of Minimal Campaign Substance