They kept a copy of that and they filed it away, so the government had a complete record of your payments into the system.

邮局留下存根并且归档保存，这样政府就能完整的记录下,你的支付情况。

耶鲁公开课 - 金融市场课程节选

We keep all sorts of secrets in our company; we don't want to be filing all of our information all the time and to have it go right up on the website on standard forms so that everyone can easily process it.

我们希望保守公司的秘密,不愿意把公司信息归档,然后立刻以标准格式发布到网上,以便所有人浏览

耶鲁公开课 - 金融市场课程节选