名词
中文翻译：Unknown
同义词：
['period', 'stage', 'phase']
例句：
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1. The project is in thefinal phase of development.
该项目正处于开发的最后一阶段。
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2. The company is in a critical phaseof growth.
该公司正处于成长的关键阶段。
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3. Theresearch has reached a crucial phase of discovery.
研究已经达到了发现的关键阶段。