名词
中文翻译：初始部分
同义词：
['primal part', 'initial segment', 'preliminary section']
例句：
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1. The company plans to expand its initial portion of the market.
该公司计划扩大其市场的初步部分。
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2. The research team identified several initial portions of the data that needed further analysis.
研究团队确定了数据的几个初步部分，需要进行进一步分析。
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3. The project's initial portion is already completed, and we are now moving on to the next phase.
项目的初步部分已经完成，我们现在开始进入下一个阶段。