book_admin/application/admin/lang/zh-cn/custom.php

<?php

return [
    'Id'  =>  'ID',
    'Title'  =>  '任务名称',
    'Message_json'  =>  '消息内容',
    'Sendtime'  =>  '发送时间',
    'User_json'  =>  '接收用户',
    'Statue'  =>  '状态',
    'Statue normal'  =>  '未发送',
    'Statue hidden'  =>  '发送中',
    'Statue send'  =>  '已发送',
    'Createtime'  =>  '创建时间',
    'Updatetime'  =>  '更新时间'
];