只要使用笔，纸，以及其它简单的工具。

Use pen and paper or other simple tools.

youdao

使用简单的工具和系统。

Use simple tools and systems.

youdao

你只需要最简单的工具和体系，而且更加没有压力。

You will need only the simplest tools and system, and you will be much less stressed.

youdao

Well a number of you have spent this past week playing with this particular tool which is a project the course has been working on for some time in an effort to make it easier and more social to actually shop for courses.

在过去的一周里,已经有一部分人开始使用这种特殊的工具了,这门课程一直在致力于这一工具的开发,目的是为了让课程变的更简单,选课更人性化。

哈佛公开课 - 计算机科学课程节选

Debt is the simplest of financial instruments.

债券是金融工具中最为简单的一种

耶鲁公开课 - 金融市场课程节选

> So this is just a dumb text editor called Nano, dumb in that it's very simple which is nice because it eliminates a lot of the complexities of learning a new tool when really all you wanna do is solve an actual problem.

这是NANO文本编辑器，它很简单，可以消除因学习这个新工具,而带来的许多复杂问题,你真正需要做的就是解决一个实际问题。

哈佛公开课 - 计算机科学课程节选