The problem was if you have a basically landlocked power and want to get to the sea, then you'd better have a navy.

问题是,如果你是一个强大的内陆国家,你想使自己的势力到达海洋,最好要有一支海军

耶鲁公开课 - 欧洲文明课程节选

So, if we want to go from that stable state to that less stable state, we need to put in a certain amount of energy to our system, that difference between the free electron and the electron bound to the metal.

所以，如果我们想使电子,从稳态到达不够稳定的状态，我们需要引入一定数量的,能量到系统中，即自由电子和束缚于金属的,电子的能量差。

麻省理工公开课 - 化学原理课程节选

Bridges have really changed our society and allowed us to get from one place to another in ways that we couldn't have gotten to easily before.

桥梁改变了我们这个社会,使我们能够以前所未有便捷方式,从一个地方到达另一个地方

耶鲁公开课 - 生物医学工程探索课程节选

Then after we're done with the experiment, we'll have transferred all of the gas from one p2 side to the other. p1 here. p2 sitting here.

我们使所有的气体，从这边到达另一边,这里是P1，这里是。

麻省理工公开课 - 热力学与动力学课程节选