Drawing multiple gold fish with the same drawing method.
以同样方法画多两条金鱼。
There is no real need to keep observing the same thing multiple times, and you will be very motivated to go back to the drawing board and redesign the site to eliminate the usability problems.
我们没必要老是观察重复的事情，而你也会用很强的动机回到画板前重新设计站点，以消除掉可用性方面的问题。
Cairo is a free software vector drawing library that can draw to multiple output formats.
cairo是一个免费的矢量绘图软件库，它可以绘制多种输出格式。
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