名词
中文翻译：初级阶段
同义词：
['initial phase', 'primitive phase']
例句：
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1.The research is in the primary phase of development.
这项研究正处于发展阶段。
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2. During the initial phase, they worked tirelessly to build their business.
在初期阶段，他们努力不懈地建立他们的业务。
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3. The company's growth has been primarily driven by its innovative products.
公司的增长主要是由其创新产品驱动的。