请输入一个有效的电子邮件地址。
All you need is a valid email address.
此种方式需要一个有效的电子邮件地址。
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。
Make sure you are connected to the network and have a valid email account.
请确保您已连接到网络并拥有有效的电子邮件帐户。
Make sure you are connected to the network and have a valid email account.
请确保您已连接到网络并拥有有效的电子邮件帐户。
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