bǐrú páiqī yóujiàn kěyǐ fàng sì liè rènwù fùzérén jiézhǐ shíjiān dāngqián zhuàngtài

比如排期邮件可以放四列：任务、负责人、截止时间、当前状态。

For example, a schedule email can contain four columns: task, owner, deadline, and current status.