The human brain contains several billion nerve cells, which are connected with one another by fine nerves. 人類的大腦含有幾十億個神經細胞，這些細胞由纖細的神經將彼此連接起來。
Scientists are now on the threshold of a better understanding of how the human brains work. 科學家們現在對人腦的功能開始有更進一步的了解。
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. 在中文裡，計算機有一個人所共知的雅號：「電腦」。這是因為計算機的工作過程與人的大腦思維過程極為相似。
