形容词
中文翻译：主要的
同义词：
['primary', 'chief', 'primary-grade例句：1. This is the primary reason for our decision.（这是我们决定的首要原因。）']
例句：
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1. This is the primary reason for our decision.
这是我们决定的首要原因。
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2.The primary goal of the project was to improve efficiency.
该项目的首要目标是提高效率。
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3. The primary concern of the government is public health.
政府的首要考虑的是公共卫生。