test/resources/lang/zh-CN/auth.php

<?php

return [
    /*
    |--------------------------------------------------------------------------
    | Authentication Language Lines
    |--------------------------------------------------------------------------
    |
    | The following language lines are used during authentication for various
    | messages that we need to display to the user. You are free to modify
    | these language lines according to your application's requirements.
    |
    */

    'failed'   => '用户名或密码错误。',
    'throttle' => '您的尝试登录次数过多，请 :seconds 秒后再试。',
];