形容词
中文翻译：主要的
同义词：
['primary', 'fundamental', 'primary factor例句：1. The primary objective of the project is to reduce carbon emissions.（该项目的主要目标是减少碳排放。）']
例句：
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1. The primary objective of the project is to reduce carbon emissions.
该项目的主要目标是减少碳排放。
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2. The primary source of information for this report is the data collected from the survey.
本报告的信息来源是调查收集的数据。
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3. The primary reason for the delay was a lack of resources.
延误的主要原因是因为资源不足。