jiaocai/application/admin/lang/zh-cn/video/video_file.php

<?php

return [
    'Id'         => 'ID',
    'Title'      => '标题',
    'Video_id'   => '视频课程id',
    'Url'        => '视频文件',
    'Sort'       => '排序',
    'Createtime' => '创建时间',
    'Updatetime' => '更新时间'
];