形容词
中文翻译：主要的
同义词：
['primary', 'primary-focused', 'principal']
例句：
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1. The primarygoal 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 focus of the research was on developing a new drug.
研究的重点是开发新药。
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3. The primary reason for the delay was due to weather conditions.
延误的主要原因是由于天气条件。