Most people wouldn't ever mail a letter or get a letter--too expensive, not to count only the paper and everything was expensive.

大多数人可能从未寄过信,或是收过信，因为太贵了，不单单是纸贵,什么东西都贵。

耶鲁公开课 - 金融市场课程节选

If you own stock-- we don't get them in the mail anymore because you own it through some brokerage account and you get it on a website.

如果你有股票...,我们现在不通过挂号信了,因为人们都通过经纪人账户,在网站上购买股票

耶鲁公开课 - 金融市场课程节选

It occured to me yesterday in my class that maybe someday there won't be social security numbers anymore, and on birth everybody will be given an e-mail address.

我昨天上课的时候想到,或许有天大家出生时,得到的将不是社会福利号码,而是一个邮箱地址。

麻省理工公开课 - 电影哲学课程节选

They were speeding the mail so that it didn't have to wait to sort it before it went on the train-- it was sorted while it was moving on the train.

发信速度很快,以致于在上火车之前不再需要,等着分类整理-,可以边坐火车边整理。

耶鲁公开课 - 金融市场课程节选

.. In 1799, it would cost so much to mail a letter-- I don't know exactly, something like $10 or $20 to mail a letter at today's rate-- and it would take a long time get there.

在1799年，寄封信需要花费-,我也不清楚具体的数字,大概相当于现在的10到20块钱-,而且还要花很久才能送达。

耶鲁公开课 - 金融市场课程节选