我们于是静下来决定什么是大家真正需要的，而我们所能贡献出来对抗这个病毒的并不是慈善捐款，是教育以及如何阻止它扩散的意识。

We sat down and decided that what the people really needed, and what we could provide to combat this virus was not charity money, but rather education and awareness of how to stop the spread of SARS.

youdao

Well it turns out a bunch of years ago people just decided that if we have the ability to express numbers and we actually care about expressing letters of the alphabet, well we just need some kind of mapping between one and the other, ASCII and so thus was born what's generally called the ASCII.

结果证实，数年前,人们觉得如果我们,有数字表达能力,而我们真正在乎其实是字符的表达，那么我们就需要数字和字符的某种对应关系，于是就有了俗称的。

哈佛公开课 - 计算机科学课程节选