The strength of the subject and the simple black background make this one work.
主体的力量和简单的黑色背景使之成为一件杰作。
In the introduction, the author explains the subject, background and significance of the research.
引言部分，介绍了研究的对象、写作的背景及选题的意义。
All above are the background of the subject.
本文就是在此背景下进行研究的。
Such a social mechanism is composed of specific subject, medium, object and background.
该社会机制有着由特定的主体、中介、客体和背景构成的基本结构。
This article is based on this background to establish the subject of the study.
本文就是基于这样的时代背景，确立该课题的研究的。
This article is based on this background to establish the subject of the study.
本文就是基于这样的时代背景，确立该课题的研究的。
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