The town lay on a flat plain at the base of an Allegheny Mountain valley so steep that the hillsides rose straight upward along the Little Connemaugh River.

VOA: standard.2010.04.26

And so there's an upward bias to the stock market, contrary to what you may have seen recently.

所以对股票市场来说是有一种上涨的倾向，这和你们最近看到的情况相反。

麻省理工公开课 - 计算机科学及编程导论课程节选

And very often what that does-- a positive emotion can take us out of this downward spiral and create an upward spiral.

很经常的是-,积极情绪把我们带出下行螺旋,形成一个上行螺旋。

哈佛公开课 - 幸福课课程节选

It goes out to the outside world, interacts,gets its hand and mind dirty, does work outside and then applies its work and learns from "the dirty experiences" and brings it back to the lab and so on and so on in an upward spiral.

而是走到外面的世界，与外界互动，接触那些“肮脏“事物，在外面工作，并吸取经验,从“肮脏经验“中学习“,将得到的经验带回实验室,诸如此类，就像一个上升的螺旋。

哈佛公开课 - 幸福课课程节选