分析师必须能完全自由地画图，而开发者必须能够在不改动图的情况下把过程执行嵌入到应用架构中。
The analyst must be able to draw the diagram in all freedom. And that developer must be able to embed the process execution in the application architecture without touching the diagram.
人们完全可以改变一个基于CSS设计的网站的视觉效果而不去改动网站的内容。
You can change the entire look of a CSS-based site without ever having to touch the content.
当有人买了新衣服，很少完全适合，这意味着一些改动种必须做的。
When someone buys a new outfit, it rarely fits perfectly, meaning some kind of alteration must be done.
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