national study翻译

national study的基本解释

读音: 美: 英:

全国性研究：一项由政府、学术机构或其他组织资助和组织的研究，旨在了解和解决全国范围内的问题。

例句

The authors point to one national study that shows 72 percent of the highest-achievers in first grade were from higher-income families.报告作者指出，一项全国性研究显示，一年级成绩最好的学生中有百分之72来自高收入家庭。
In a national study of the prevalence of psychiatric disorders, three-quarters of those diagnosed with major depression had at least one other diagnosis.对全国精神疾病患病率的研究，他们认为主要诊断为抑郁症的病人中约有四分之三的病人，至少可以诊断出他们还患有其他的疾病。
But according to a national study, 20% of battlefield land is protected, 20% is developed and the remaining 60% is subject to a scramble to purchase or protect.但据一项全国性调查，20%的战场受到了保护，20%的战场已经被开发了，其余60%战场主要是被争相购买或在保护中。

短语

national study of H earing 国家听力研究 ; 听力研究
new national study 新国学
cross-national study 跨国研究
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