... Had Already Been Taken 已经被 Username has already been taken 用户名已被采取 ; 已经用户名 ; 用户名已经采取 Email has already been taken 电子邮件已经被 ...
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用户名已经采取
The user name has been taken
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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