请在登录前输入验证码。

Please enter the security code before logging in.

你收到的短信中包含一个验证码。

The text message you received contains a security code.

为了完成注册，请输入验证码。

To complete the registration, please enter the security code.

这个网站要求每次登录都输入验证码。

This website requires a security code for each login.

如果你没有收到验证码，请检查你的垃圾邮件文件夹。

If you haven't received the security code, please check your spam folder.

验证码已发送到您的手机。

The verification code was sent to your phone.

每次登录都需要验证码。

Every time you log in, a verification code is needed.

系统会自动重新发送验证码。

The system will automatically resend the verification code.

输入信用卡验证码以完成交易。

Enter the ccv to complete the transaction.

网站使用验证码来防止自动注册。

Websites use captcha to prevent automated sign-ups.