写作的过程由四个阶段组成，每个阶段都包含一定的活动。
The writing process is made up of four stages, and each stage involves certain activities.
我们建议将该过程分为四个步骤，或者迭代，从开发过程的最早期阶段开始。
We suggest that the process be structured in four steps, or iterations, starting very early in the development cycle.
RUP项目的四个阶段体现了软件工程过程中的不同项目样式。
The four phases in a RUP project represent different project styles in the software engineering process.
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