anxinliao/application/admin/lang/zh-cn/userrelation.php

<?php

return [
    'Id'            => 'ID',
    'Uid'           => '用户ID',
    'Relation_id'   => '关系ID',
    'To_uid'        => '被关联用户ID',
    'Status'        => '状态',
    'Status 0'      => '申请',
    'Status 1'      => '同意',
    'Status 2'      => '拒绝',
    'Createtime'    => '申请时间',
    'Updatetime'    => '更新时间',
    'Usera.username' => '用户名',
    'Userb.username' => '被关联用户名',
    'Relation.name' => '关系名'
];