The curriculum of the schools should be subject centered. In particular, student learning should be centered around basic subjects such as reading, writing, history, math, and science.

学校的课程应以学科为中心，确切地说学生的学习应被视为中心围绕基本课程开展，如：阅读、写作、历史、数学、和科学。

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For instance, in the picture on the left, the subject is centered, but on the right, the photographer got a more effective photograph by simply changing the viewpoint.

例如，在左图，主体在中间放置，但在右图，拍摄者通过简单地改变视角使图片的效果更令人印象深刻。

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Centered around the subject, this paper mainly studies the theory and method of the geometric error evaluation, and the main work is as follows.

为了开发形位误差评定系统，在形位误差评定理论及方法进行了研究和探讨，围绕该课题本文主要进行了以下几个方面的研究工作。

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Not long ago, when the subject of changes to baseball playoffs came up, the talk usually centered around team expansion.

FORBES: Baseball Could Use Expanded Playoffs