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

They are kept track of very closely, but because there's still smallpox that exists on the planet, there is some concern that that could be obtained and used to develop a weapon.

并且科学家们仔细记录病毒的使用情况,但因为这星球上仍存在天花,就会有人担心,某些人会获得天花病毒,并将其制成武器

耶鲁公开课 - 生物医学工程探索课程节选

When you retire--you can actually get it now, electronically, your entire employment history, all your contributions-- when you retire, there will be a formula-- you can find it on the Social Security system website-- which resembles the formula that they did in 1889.

现在你退休之后可以自动得到，你这一生的工作情况，还有你全部的投保记录-,当你退休的时候-,你可在社会保障体系网站上找到一个公式-,类似于1889年使用的那个公式。

耶鲁公开课 - 金融市场课程节选