The Back button will actually work, and that experience will disorient some users.
Back按钮实际上会工作，这种体验会让某些用户感到迷惑。
As for the browser back button, if the state of the iFrame changed such that the history was updated, it might seem to work correctly.
对于浏览器的“后退”按钮，如果iF rame的状态发生更改而更新浏览历史，则可能会正常工作。
The basic rule is: if you allow someone to click on a link, you have to add an object to the browser history so the Back button will work as expected.
基本规则是：如果允许别人单击链接，就必须在浏览器历史中增加一个对象，以便后退按钮能够正常工作。
To get back to work, you must first click the Close button on the Word Count dialog.
你若想返回工作状态，则必须单击这个字数统计对话框中的关闭按钮。
Usability Constrains: When you navigate a Flash site designed with a older version, the back button does not work: instead of taking you to the previous screen, it will get you out of the Flash site.
可用性限制：用老版本Flash设计的网站，后退键没有作用：点击后退键会使你退出Flash网站，而不是返回上一层网页。
Usability Constrains: When you navigate a Flash site designed with a older version, the back button does not work: instead of taking you to the previous screen, it will get you out of the Flash site.
可用性限制：用老版本Flash设计的网站，后退键没有作用：点击后退键会使你退出Flash网站，而不是返回上一层网页。
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