形容词
中文翻译：主要的
同义词：
['first', 'primary', 'chief例句：1. The primary goal of the project is to improve efficiency.（该项目的首要目标是提高效率。）']
例句：
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1. The primary goal of the project is to improve efficiency.
该项目的首要目标是提高效率。
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2.Primary care physicians are the first line of medical care for many patients.
初级保健医生是许多患者的第一线医疗护理。
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3.The primary school students were given a special treat by the teacher.
小学生得到了老师的特殊待遇。