不管在普通情况下，还是在极限负载或者偶尔出错的情况下，都使用现成的MySQL作为存储引擎，因为我们了解它的行为。

Use off-the-shelf MySQL as the storage engine, because we understand its behavior — in normal use as well as under extreme load and unusual failure conditions.

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Zimbra已经使用AjaxTK挑战了我们所谓的web页面的极限，开发出完整的在线Collaboration Suite，其中包括企业级电子邮件、日历和联系人。

Zimbra has used AjaxTK to push the envelope of what we think of as a Web page by developing a complete online Collaboration Suite, including enterprise-class E-mail, calendar, and contacts.

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仅使用极限，我们可以在表中列出用户的所有列。

Just using LIMIT we can list all columns in table users.

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