Suppose we don't know what economic circumstances we'd be born into and what kind of contingencies we'd have in life.

假设我们不知道,将会在怎样的经济环境中生存,而生命中又会有怎样的意外发生。

耶鲁公开课 - 金融市场课程节选

Let's say that you live in an apartment that's getting really dirty

假设你住在一间环境比较脏乱的公寓。

I'm afraid of 课堂 - SpeakingMax英语口语达人

Suppose we're looking at the system isolated from the outside world.

假设我们研究一个,与外部环境。

麻省理工公开课 - 热力学与动力学课程节选

w we have the environment doing work on the system OK, now we've assumed that epsilon prime is greater than epsilon.

大于零，that，is，in，this，one,在这里环境对系统做功,好，现在我们假设,ε’比ε大。

麻省理工公开课 - 热力学与动力学课程节选