Please use a valid email address to which direct responses can be made.

请使用一个能够做出直接回应，有效的电子邮件地址。

youdao

Inside the dialog box, ensure that you type in a valid email address (for example see below).

在对话框中，确保键入一个有效的电子邮件地址(如下所示)。

youdao

The script looks harmless enough assuming that we will always get a completely valid email address.

假设我们能一直获得完全有效的email地址，那么这段脚本看上去没有任何问题。

youdao

But when you start writing programs, especially when we get to web-based stuff where you want -- to check the user's input -- is it valid, is it an email address, -- and all these different scenarios -- it's actually often useful to be able to just enumerate them or rattle them off using this switching construct instead.

但是当你看是写程序时，特别是当我们,使用基于网络的东西，你想要,检查用户的输入-,它是合法的吗？它是不是一个电子邮箱地址？,所有的这些场景-,实际上它常常是有用的，当你用枚举结构列举它们,或者用它来快速地来说出它们。

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That means you have to register with Forbes.com using a valid email address.

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Liberty Reserve is a company that allows users to apply for an account through the Internet by simply supplying a valid email address.

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Users are then responsible for registering a single account with a valid email address, credit card details along with a billing address (alternatively, a valid Paypal ID).

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