名词
中文翻译：阶段
同义词：
['period', 'phase', 'period of time']
例句：
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1. The research phase is crucial for the project's success.
研究阶段对于项目的成功至关重要。
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2. The company has gone through several phases in its development.
该公司在其发展过程中经历了几个阶段。
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3. During this phase, we need to focus on improving our skills.
在这个阶段，我们需要专注于提高我们的技能。