Input methods are limited. Typing on the keyboard is easy, but if you want to draw pictures - well... you could grab a graphics tablet, but that's not as simple as just sketching things on paper.
电脑的输入方式是有限的,在键盘上敲敲打打是很简单,但当我们想要画一幅画时可能就需要一个手写板了,即便如此也不如在纸上涂鸦方便。
While it is possible to build sketches on the computer, it's not as fast as sketching multiple concepts on paper.
虽然在电脑上也可以画草图,但在纸上描绘头脑中的想法要快的多。
Those who prefer to use it as a sketching tool (as described earlier in this article) can still use it in the same informal way as UML 1.
那些喜欢将它作为一种绘图工具(正如在文章中先前所描述的那样)的使用者同样也可以像U ML 1一样以非正式的方式使用它。
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