形容词
中文翻译：主要的
同义词：
['primary', 'foremost', 'chief例句：1. The primary goal of the project is to reduce carbon emissions.（这个项目的首要目标是减少碳排放。）2. The primary reason for his absence was a sudden illness.（他缺席的主要原因是一个突发的疾病。）3. The primary function of this device is to heat water.（这个装置的主要功能是加热水。）']
例句：
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1. The primary goal of the project is to reduce carbon emissions.
这个项目的首要目标是减少碳排放。
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2. The primary reason for his absence was a sudden illness.
他缺席的主要原因是一个突发的疾病。
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3. The primary function of this device is to heat water.
这个装置的主要功能是加热水。