yueke/application/admin/lang/en/video.php

<?php

return [
    'Id'              => 'ID',
    'Name'            => 'title',
    'Video_file'      => 'video',
    'Size'            => 'size',
    'Createtime'      => 'create time',
    'Second'          => 'second',
    'Coach_id'        => 'Coach Id',
    'Is_show'         => 'is show',
    'Is_show 1'       => 'up',
    'Is_show 0'       => 'down',
    'Weigh'           => 'weigh',
    'Coach.nickname'  => 'nickname',
    'Coach.firstname' => 'firstname',
    'Coach.lastname'  => 'lastname'
];