这通常是通过用户名和口令对话框提示实现的。
This is usually through a user name and password dialog prompt.
当您在浏览器中遇到一个要求认证的Web页面时，您通常得到一个对话框，让您为该 Web 页面输入您的用户标识和口令。
When you encounter a Web page in a browser that requires authentication you usually get a dialog box that lets you enter your userid and password for this Web page.
注意，您不必在这里指定口令；如果未指定口令，或口令不正确，就会显示登录提示对话框(除非您已经将该属性设置为false)。
Note that you do not have to specify a password here; if the password is not specified or incorrect, the login prompt dialog will be shown (unless you've set that property to false).
可以使用Test按钮(已勾选)检验该连接，如图3所示(注意，如果口令不匹配，仍将有login提示符对话框弹出)。
You can use the Test button (with the checkmark) to verify the connection, as shown in Figure 3 (note that this will still give you the login prompt dialog if the password doesn't match).
练习绕口令。如果你在比较难发音的绕口令上下点功夫，你会发现每天的日常对话会简单很多。
Practice saying tongue twisters. If you work on phrases that are difficult to pronounce, you may find it easier to speak clearly in everyday conversation.
练习绕口令。如果你在比较难发音的绕口令上下点功夫，你会发现每天的日常对话会简单很多。
Practice saying tongue twisters. If you work on phrases that are difficult to pronounce, you may find it easier to speak clearly in everyday conversation.
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