名词
中文翻译：多阶段
同义词：
['multi-stage', 'multi-level例句：1. The project involves several stages of development.（这个项目包括几个发展阶段。）']
例句：
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1. The project involves several stages of development.
这个项目包括几个发展阶段。
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2. The company has implemented a multistage training program for its employees.
该公司为员工实施了一个多阶段培训计划。
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3. The research was conducted in three stages: literature review, data analysis, and conclusions.
研究分为三个阶段：文献综述、数据分析和结论。