billiards-server/application/admin/lang/zh-cn/sysmessage.php

<?php

return [
    'From_user_id'     => '发送人',
    'User_id'          => '接收人',
    'Message_type'     => '消息类型',
    'Message_type sys' => '系统消息',
    'Message_type @'   => '@我的',
    'Message'          => '消息内容',
    'Status'           => '状态',
    'Status 0'         => '未读',
    'Status 1'         => '已读',
    'Createtime'       => '创建时间',
    'Updatetime'       => '更新时间'
];