形容词
中文翻译：主要的
同义词：
['primary', 'primary-grade', 'primary-school']
例句：
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1. The primary concernof the government is to maintain law and order.
政府的首要关注是维护法律和秩序。
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2. The primary school teacher was very kind to the children.
小学老师对孩子们非常友好。
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3. Primary research indicates that this method is effective.
初步研究表明这种方法是有效的。