If a heart beats too slowly, the pacemaker will use electrical signals to help set a normal rate.

VOA: special.2010.06.02

Now if the spinal cord is injured, for example, what we propose to do is to tap into the electrical signals associated with individual neurons.

现在，如果脊髓受到伤害，我们建议去接近与单个神经元,相联系的电子信号。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

So if the landscape invites him to grow as an imaginative person, the social world he lives in, this episode signals to us immediately, will never live up to that imagination.

假如生活氛围使他,成为一个充满想像力的人，那么他所处的社会就是这一时期，这会让我们马上感到，那种想象永不可能成真。

耶鲁公开课 - 1945年后的美国小说课程节选

But if the economy and financial markets are giving mixed signals, key members of the Obama administration also appear less than uniform in their economic pronouncements.

VOA: standard.2009.03.15

Change often signals danger or opportunity and if we are especially tuned-in to change, it helps us survive ? and it helps us pass along our genes. Okay?

变化通常意味着危险和机遇,如果我们能调整适应变化，我们生存能力更强,并且能传递我们的基因，是不是？

耶鲁公开课 - 心理学导论课程节选

So what is shown here is the potential solution to potentially read out neural signals dragged from the brain and use these signals after some interpretations or decrypting if you will to drive prosthetic arms or computer cursors on the screen.

大家现在看到的是一种可能的解决方案,有助于解读病人大脑发出的神经信号,同时在经过翻译或者解码之后,使用这些信号，驱动假臂,或者电脑屏上的光标。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Cells share signals with each other, and that leads to activation of a specific cell population if we're thinking about a vaccine that produces antibodies, that leads to activation of B-cells, immature B-cells, which do two things.

细胞与细胞之间存在信号传递,而这将激活特定的细胞群体,如果是一些能够产生抗体的疫苗,抗体将会激活B淋巴细胞,幼B淋巴细胞,使其发生两种变化

耶鲁公开课 - 生物医学工程探索课程节选

If language can refer to just about everything from English to traffic signals, then we're not going to be able to find interesting generalizations or do good science about it.

如果语言能够表示一切,从英语到交通信号,那我们就无法得出各种有趣的概论,或是无法对语言进行科学的研究

耶鲁公开课 - 心理学导论课程节选