一开始，当我们去到一个温暖的地方，我们会感到放松，幸福水平高到值峰。

Initially, when we go to a warm place, we feel the relief, and there's this spiky level of wellbeing.

youdao

那么，我们就开始学习如何通过基本训练提高视力吧：放松和消除压力。

So let us begin to learn on how to improve eyesight naturally with the basic understanding: relaxing and eliminating stress.

youdao

史蒂文：放松点儿。来点儿咖啡。我们一会儿就要开始了。

STEVEN: Relax. Have some coffee. We're going to begin in a few minutes.

youdao

OK, here we go, here we go, you see, I'm doing it down here, I can't see it, does that-- ah, I hear his sighs of relief, OK, good. There we go. Better. All right.

好，我们开始，大家可以看到，我在这里写这个程序，我看不见，这是不是-啊，我听到大家放松的叹气了，好，让我们开始吧，好多了，好。

麻省理工公开课 - 计算机科学及编程导论课程节选