一个挥之不去的问题是“我为什么需要它？”——或者，也许更能说明问题的是，“为什么你需要知道这个？”——-阻碍了许多踏入新的冒险的脚步。

The persistent question of "Why do I need that?"—or, perhaps more tellingly, "Why do you need to know that?" —dogs the steps of many new ventures.

youdao

一个挥之不去的问题阻碍了许多新企业的脚步，即“我为什么需要它？”或者，也许更能说明问题的是，“为什么你需要知道这个？”

The persistent question of "Why do I need that?"—or, perhaps more tellingly, "Why do you need to know that?"—dogs the steps of many new ventures.

youdao

我向您介绍了许多需要考虑的方面。

I've given you a lot to think about here.

youdao

It turns out you can list one, give it a name, and if you use square brackets, that tells the compiler I actually want to put multiple values inside of this -- inside of this variable and how do we do that?

结果是你可以列举一个，给它取个名字，如果你使用方括号，那是告诉编译器,在里面我需要许多的值--在这些变量里,我怎么做到的？

哈佛公开课 - 计算机科学课程节选

I may not want to do the full range of this, but I may decide I have to use a lot of gigabytes of space in order to do a trade off.

哈希成一个整数，我不想完整的去做这件事，但是我可以想像我需要用许多G的空间,去完成空间和时间之间的权衡。

麻省理工公开课 - 计算机科学及编程导论课程节选