Starting from the Han dynasty, artists made people as the main subject of their paintings.

从汉代开始，画家就把人作为绘画的主体。

youdao

That poor ant is the main subject of our radio story.

可怜的蚂蚁是我们广播故事的主要人物。

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Your major is the main subject you choose to study in college.

你的专业是你在大学选择的主要学科。

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NATO spokesman James Appathurai said the main subject at the sixtieth anniversary meetings would be the NATO operations in Afghanistan.

VOA: special.2009.04.04

And,he said the real reason officials removed the video is because of the exhibit's main subject,gay love.

VOA: special.2010.12.15

The main subject of the meeting with the detective was lawsuits and money and the priest.

WSJ: Rabinowitz: The Trials of Father MacRae

While not the main subject of his post, Forbes contributor William Baldwin mentions one way to resolve this dilemma.

FORBES: Active v. Passive Management: How to Get the Best of Both Worlds

Ignorance is not an excuse, but it seems to be the central theme for Michael Wallerstein, the main subject of the article.

FORBES: Should Law Schools Tell Applicants About The Dismal Jobs Picture?