The human brain contains several billion nerve cells, which are connected with one another by fine nerves. 人类的大脑含有几十亿个神经细胞，这些细胞由纤细的神经将彼此连接起来。
Scientists are now on the threshold of a better understanding of how the human brains work. 科学家们现在对人脑的功能开始有更进一步的了解。
In Chinese, a computer is popularly known as an "electrical brain", for the working process of a computer is similar to a human brain very much. 在中文里，计算机有一个人所共知的雅号：“电脑”。这是因为计算机的工作过程与人的大脑思维过程极为相似。
