数据抽象是将特定数据集简化为整体的简化表示。
Data abstraction is the reduction of a particular body of data to a simplified representation of the whole.
We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes.
The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.
写作就像性爱。首先你为爱而做,然后为朋友而做,最后为钱而做。