最简单的就是一个头像，我猜这就是大多数人当被要求上传个人资料图片时会选择的。

The simplest thing is a headshot and I suspect that's what the majority of people use when they are asked to upload a profile picture.

youdao

这就是我的愿望，一个简单的愿望。

This is my desire, a simple wish.

youdao

我一直认为要使山墙看起来漂亮应该有一条简单的直线。这就是为什么一个简单的直线型平面是必要的。

I always think that to look beautiful the gable should has a simple straight line. That's why a simple and rectilinear plan is needed.

youdao

What we're really getting at is the idea of saying I want to have a way of grouping together information into units that make sense. So I can go back to one of those topics we had at the beginning, which is the idea of abstraction, that I can create one of those units as a simple entity, bury away the details and write really modular code.

组合成为有意义的单元,那么这就让我们回到,一开始讲的话题之一了,这就是抽象的概念,也就是我可以以一个简单的，实体的形式创建这样的一个单元，把具体实现隐藏然后写一些,真正模块化的代码,我们在以后的课程中。

麻省理工公开课 - 计算机科学及编程导论课程节选