在高级职称中，只有四分之一的教授是女性，黑人女性在所有女性学术人员中所占比例不到2%。

At senior levels, only a quarter of professors are women, and black women make up less than 2% of all female academic staff.

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根据最近对招生官的一项调查，只有四分之一的私立大学表示，论文在评判申请时“相当重要”。

According to a recent survey of admissions officers, only one in four private colleges say the essay is of "considerable importance" in judging an application.

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根据环境保护部对全国338个城市的调查，2016年，只有四分之一的中国城市达到了国家的空气质量标准。

In 2016, only one fourth of Chinese cities met the country's air quality standards, according to a survey of 338 cities nationwide from the Ministry of Environmental Protection.

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The MRIs per capita is about half of that of United States, in Britain, which also has a government health program, there is only about a fourth in the United States.

加拿大核磁共振医疗设备,的人均使用量,只有美国的一半，在英国，也有一个政府医疗体系，只有美国的四分之一资金。

斯坦福公开课 - 经济学课程节选

Now, So, you have these maps in your head but the thing to realize is— And these maps are part of your cortex, but the things to realize is that's an important part of what goes on in your brain but less than one quarter of the cortex contains these maps or projection areas.

你的脑袋里存在着这些定位图,但你们会发现,这些定位图是你大脑皮层的一部分,但你们会发现,这是在你的大脑活动中,起到重要作用的一部分大脑皮层,不过只有不到四分之一的大脑皮层,存在这些定位图或是投射区

耶鲁公开课 - 心理学导论课程节选